diff --git a/xmpp-vala/src/core/xmpp_stream.vala b/xmpp-vala/src/core/xmpp_stream.vala
index 2cba2b54..18256119 100644
--- a/xmpp-vala/src/core/xmpp_stream.vala
+++ b/xmpp-vala/src/core/xmpp_stream.vala
@@ -126,9 +126,10 @@ public class XmppStream {
         foreach (XmppStreamModule module in modules) module.detach(this);
     }
 
-    public XmppStreamModule? get_module(string ns, string id) {
+    public T? get_module<T>(ModuleIdentity<T>? identity) {
+        if (identity == null) return null;
         foreach (var module in modules) {
-            if (module.get_ns() == ns && module.get_id() == id) {
+            if (module.get_ns() == identity.ns && module.get_id() == identity.id) {
                 return module;
             }
         }
@@ -231,6 +232,20 @@ public abstract class XmppStreamFlag {
     public abstract string get_id();
 }
 
+public class ModuleIdentity<T> : Object {
+    public string ns { get; private set; }
+    public string id { get; private set; }
+
+    public ModuleIdentity(string ns, string id) {
+        this.ns = ns;
+        this.id = id;
+    }
+
+    public T? cast(XmppStreamModule module) {
+        return (T?) module;
+    }
+}
+
 public abstract class XmppStreamModule : Object {
     public abstract void attach(XmppStream stream);
     public abstract void detach(XmppStream stream);
diff --git a/xmpp-vala/src/module/bind.vala b/xmpp-vala/src/module/bind.vala
index d01fda7a..388a907e 100644
--- a/xmpp-vala/src/module/bind.vala
+++ b/xmpp-vala/src/module/bind.vala
@@ -6,6 +6,7 @@ namespace Xmpp.Bind {
     /** The parties to a stream MUST consider resource binding as mandatory-to-negotiate. (RFC6120 7.3.1) */
     public class Module : XmppStreamNegotiationModule {
         public const string ID = "bind_module";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
         private string requested_resource;
 
@@ -55,7 +56,7 @@ namespace Xmpp.Bind {
         }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/iq/module.vala b/xmpp-vala/src/module/iq/module.vala
index 2e9ffa5d..d5dbdca2 100644
--- a/xmpp-vala/src/module/iq/module.vala
+++ b/xmpp-vala/src/module/iq/module.vala
@@ -7,6 +7,7 @@ namespace Xmpp.Iq {
 
     public class Module : XmppStreamNegotiationModule {
         public const string ID = "iq_module";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
         private HashMap<string, ResponseListener> responseListeners = new HashMap<string, ResponseListener>();
         private HashMap<string, ArrayList<Handler>> namespaceRegistrants = new HashMap<string, ArrayList<Handler>>();
@@ -38,7 +39,7 @@ namespace Xmpp.Iq {
         }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/message/module.vala b/xmpp-vala/src/module/message/module.vala
index 10d83693..8aad08df 100644
--- a/xmpp-vala/src/module/message/module.vala
+++ b/xmpp-vala/src/module/message/module.vala
@@ -7,6 +7,7 @@ namespace Xmpp.Message {
 
     public class Module : XmppStreamModule {
         public const string ID = "message_module";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
         public signal void pre_send_message(XmppStream stream, Message.Stanza message);
         public signal void pre_received_message(XmppStream stream, Message.Stanza message);
@@ -27,7 +28,7 @@ namespace Xmpp.Message {
         }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/presence/module.vala b/xmpp-vala/src/module/presence/module.vala
index 6c9d183c..c69f1e3a 100644
--- a/xmpp-vala/src/module/presence/module.vala
+++ b/xmpp-vala/src/module/presence/module.vala
@@ -5,6 +5,7 @@ namespace Xmpp.Presence {
 
     public class Module : XmppStreamModule {
         public const string ID = "presence_module";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
         public signal void received_presence(XmppStream stream, Presence.Stanza presence);
         public signal void pre_send_presence_stanza(XmppStream stream, Presence.Stanza presence);
@@ -96,7 +97,7 @@ namespace Xmpp.Presence {
         }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/roster/module.vala b/xmpp-vala/src/module/roster/module.vala
index c8b09710..7bf8917c 100644
--- a/xmpp-vala/src/module/roster/module.vala
+++ b/xmpp-vala/src/module/roster/module.vala
@@ -7,6 +7,7 @@ namespace Xmpp.Roster {
 
     public class Module : XmppStreamModule, Iq.Handler {
         public const string ID = "roster_module";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
         public signal void received_roster(XmppStream stream, Collection<Item> roster);
         public signal void item_removed(XmppStream stream, Item roster_item);
@@ -72,7 +73,7 @@ namespace Xmpp.Roster {
         public void on_iq_get(XmppStream stream, Iq.Stanza iq) { }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/sasl.vala b/xmpp-vala/src/module/sasl.vala
index 07e3f5c4..af9087cd 100644
--- a/xmpp-vala/src/module/sasl.vala
+++ b/xmpp-vala/src/module/sasl.vala
@@ -5,6 +5,7 @@ namespace Xmpp.PlainSasl {
 
     public class Module : XmppStreamNegotiationModule {
         public const string ID = "plain_module";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
         private const string MECHANISM = "PLAIN";
 
         private string name;
@@ -89,7 +90,7 @@ namespace Xmpp.PlainSasl {
         }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/stream_error.vala b/xmpp-vala/src/module/stream_error.vala
index 73e2bb36..d47ddc60 100644
--- a/xmpp-vala/src/module/stream_error.vala
+++ b/xmpp-vala/src/module/stream_error.vala
@@ -8,6 +8,7 @@ namespace Xmpp.StreamError {
 
     public class Module : XmppStreamModule {
         public const string ID = "stream_error_module";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
         public override void attach(XmppStream stream) {
             stream.received_nonza.connect(on_received_nonstanza);
@@ -18,7 +19,7 @@ namespace Xmpp.StreamError {
         }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/tls.vala b/xmpp-vala/src/module/tls.vala
index 06535319..0d4a7e73 100644
--- a/xmpp-vala/src/module/tls.vala
+++ b/xmpp-vala/src/module/tls.vala
@@ -5,6 +5,7 @@ namespace Xmpp.Tls {
 
     public class Module : XmppStreamNegotiationModule {
         public const string ID = "tls_module";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
         public bool require { get; set; default = true; }
         public bool server_supports_tls = false;
@@ -67,7 +68,7 @@ namespace Xmpp.Tls {
         }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public override bool mandatory_outstanding(XmppStream stream) {
diff --git a/xmpp-vala/src/module/xep/0027_pgp/module.vala b/xmpp-vala/src/module/xep/0027_pgp/module.vala
index 63177f4d..3fcd6559 100644
--- a/xmpp-vala/src/module/xep/0027_pgp/module.vala
+++ b/xmpp-vala/src/module/xep/0027_pgp/module.vala
@@ -9,6 +9,7 @@ namespace Xmpp.Xep.Pgp {
 
     public class Module : XmppStreamModule {
         public const string ID = "0027_current_pgp_usage";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
         public signal void received_jid_key_id(XmppStream stream, string jid, string key_id);
 
@@ -52,7 +53,7 @@ namespace Xmpp.Xep.Pgp {
         }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/xep/0030_service_discovery/module.vala b/xmpp-vala/src/module/xep/0030_service_discovery/module.vala
index 109da897..163f8cfc 100644
--- a/xmpp-vala/src/module/xep/0030_service_discovery/module.vala
+++ b/xmpp-vala/src/module/xep/0030_service_discovery/module.vala
@@ -9,6 +9,7 @@ namespace Xmpp.Xep.ServiceDiscovery {
 
     public class Module : XmppStreamModule, Iq.Handler {
         public const string ID = "0030_service_discovery_module";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
         public ArrayList<Identity> identities = new ArrayList<Identity>();
 
@@ -83,7 +84,7 @@ namespace Xmpp.Xep.ServiceDiscovery {
         public override void detach(XmppStream stream) { }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/xep/0045_muc/module.vala b/xmpp-vala/src/module/xep/0045_muc/module.vala
index f9ed9539..cb7f0d85 100644
--- a/xmpp-vala/src/module/xep/0045_muc/module.vala
+++ b/xmpp-vala/src/module/xep/0045_muc/module.vala
@@ -30,6 +30,7 @@ public enum MucEnterError {
 
 public class Module : XmppStreamModule {
     public const string ID = "0045_muc_module";
+    public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
     public signal void received_occupant_affiliation(XmppStream stream, string jid, string? affiliation);
     public signal void received_occupant_jid(XmppStream stream, string jid, string? real_jid);
@@ -97,7 +98,7 @@ public class Module : XmppStreamModule {
     }
 
     public static Module? get_module(XmppStream stream) {
-        return (Module?) stream.get_module(NS_URI, ID);
+        return (Module?) stream.get_module(IDENTITY);
     }
 
     public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/xep/0048_bookmarks/module.vala b/xmpp-vala/src/module/xep/0048_bookmarks/module.vala
index d7767208..25a4678e 100644
--- a/xmpp-vala/src/module/xep/0048_bookmarks/module.vala
+++ b/xmpp-vala/src/module/xep/0048_bookmarks/module.vala
@@ -7,6 +7,7 @@ private const string NS_URI = "storage:bookmarks";
 
 public class Module : XmppStreamModule {
     public const string ID = "0048_bookmarks_module";
+    public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
     public signal void conferences_updated(XmppStream stream, ArrayList<Conference> conferences);
 
@@ -110,7 +111,7 @@ public class Module : XmppStreamModule {
     public override void detach(XmppStream stream) { }
 
     public static Module? get_module(XmppStream stream) {
-        return (Module?) stream.get_module(NS_URI, ID);
+        return (Module?) stream.get_module(IDENTITY);
     }
 
     public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/xep/0049_private_xml_storage.vala b/xmpp-vala/src/module/xep/0049_private_xml_storage.vala
index c57acdde..0472296c 100644
--- a/xmpp-vala/src/module/xep/0049_private_xml_storage.vala
+++ b/xmpp-vala/src/module/xep/0049_private_xml_storage.vala
@@ -5,6 +5,7 @@ namespace Xmpp.Xep.PrivateXmlStorage {
 
     public class Module : XmppStreamModule {
         public const string ID = "0049_private_xml_storage";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
         public void store(XmppStream stream, StanzaNode node, StoreResponseListener listener) {
             StanzaNode queryNode = new StanzaNode.build("query", NS_URI).add_self_xmlns().put_node(node);
@@ -44,7 +45,7 @@ namespace Xmpp.Xep.PrivateXmlStorage {
         public override void detach(XmppStream stream) { }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/xep/0054_vcard/module.vala b/xmpp-vala/src/module/xep/0054_vcard/module.vala
index 58b71d2c..d0b23db5 100644
--- a/xmpp-vala/src/module/xep/0054_vcard/module.vala
+++ b/xmpp-vala/src/module/xep/0054_vcard/module.vala
@@ -6,6 +6,7 @@ private const string NS_URI_UPDATE = NS_URI + ":x:update";
 
 public class Module : XmppStreamModule {
     public const string ID = "0027_current_pgp_usage";
+    public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
     public signal void received_avatar(XmppStream stream, string jid, string id);
 
@@ -26,7 +27,7 @@ public class Module : XmppStreamModule {
     }
 
     public static Module? get_module(XmppStream stream) {
-        return (Module?) stream.get_module(NS_URI, ID);
+        return (Module?) stream.get_module(IDENTITY);
     }
 
     public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/xep/0060_pubsub.vala b/xmpp-vala/src/module/xep/0060_pubsub.vala
index 600ddded..f9379c45 100644
--- a/xmpp-vala/src/module/xep/0060_pubsub.vala
+++ b/xmpp-vala/src/module/xep/0060_pubsub.vala
@@ -8,6 +8,7 @@ namespace Xmpp.Xep.Pubsub {
 
     public class Module : XmppStreamModule {
         public const string ID = "0060_pubsub_module";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
         private HashMap<string, EventListenerDelegate> event_listeners = new HashMap<string, EventListenerDelegate>();
 
@@ -70,7 +71,7 @@ namespace Xmpp.Xep.Pubsub {
         }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/xep/0084_user_avatars.vala b/xmpp-vala/src/module/xep/0084_user_avatars.vala
index 575b5d78..3654509c 100644
--- a/xmpp-vala/src/module/xep/0084_user_avatars.vala
+++ b/xmpp-vala/src/module/xep/0084_user_avatars.vala
@@ -7,6 +7,7 @@ namespace Xmpp.Xep.UserAvatars {
 
     public class Module : XmppStreamModule {
         public const string ID = "0084_user_avatars";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
         public signal void received_avatar(XmppStream stream, string jid, string id);
 
@@ -73,7 +74,7 @@ namespace Xmpp.Xep.UserAvatars {
         }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/xep/0085_chat_state_notifications.vala b/xmpp-vala/src/module/xep/0085_chat_state_notifications.vala
index cefc7a18..3e92cd44 100644
--- a/xmpp-vala/src/module/xep/0085_chat_state_notifications.vala
+++ b/xmpp-vala/src/module/xep/0085_chat_state_notifications.vala
@@ -15,6 +15,7 @@ private const string[] STATES = {STATE_ACTIVE, STATE_INACTIVE, STATE_GONE, STATE
 
 public class Module : XmppStreamModule {
     public const string ID = "0085_chat_state_notifications";
+    public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
     public signal void chat_state_received(XmppStream stream, string jid, string state);
 
@@ -42,7 +43,7 @@ public class Module : XmppStreamModule {
     }
 
     public static Module? get_module(XmppStream stream) {
-        return (Module?) stream.get_module(NS_URI, ID);
+        return (Module?) stream.get_module(IDENTITY);
     }
 
     public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/xep/0115_entitiy_capabilities.vala b/xmpp-vala/src/module/xep/0115_entitiy_capabilities.vala
index 472eb9bd..c39f9cad 100644
--- a/xmpp-vala/src/module/xep/0115_entitiy_capabilities.vala
+++ b/xmpp-vala/src/module/xep/0115_entitiy_capabilities.vala
@@ -7,6 +7,7 @@ namespace Xmpp.Xep.EntityCapabilities {
 
     public class Module : XmppStreamModule {
         public const string ID = "0115_entity_capabilities";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
         private string own_ver_hash;
         private Storage storage;
@@ -36,7 +37,7 @@ namespace Xmpp.Xep.EntityCapabilities {
         }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/xep/0184_message_delivery_receipts.vala b/xmpp-vala/src/module/xep/0184_message_delivery_receipts.vala
index 489592fa..bd0fe98a 100644
--- a/xmpp-vala/src/module/xep/0184_message_delivery_receipts.vala
+++ b/xmpp-vala/src/module/xep/0184_message_delivery_receipts.vala
@@ -7,6 +7,7 @@ namespace Xmpp.Xep.MessageDeliveryReceipts {
 
     public class Module : XmppStreamModule {
         public const string ID = "0184_message_delivery_receipts";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
         public signal void receipt_received(XmppStream stream, string jid, string id);
 
@@ -25,7 +26,7 @@ namespace Xmpp.Xep.MessageDeliveryReceipts {
         }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/xep/0199_ping.vala b/xmpp-vala/src/module/xep/0199_ping.vala
index 82da1d23..800ccfd8 100644
--- a/xmpp-vala/src/module/xep/0199_ping.vala
+++ b/xmpp-vala/src/module/xep/0199_ping.vala
@@ -7,6 +7,7 @@ namespace Xmpp.Xep.Ping {
 
     public class Module : XmppStreamModule {
         public const string ID = "0199_ping";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
         public void send_ping(XmppStream stream, string jid, ResponseListener? listener = null) {
             Iq.Stanza iq = new Iq.Stanza.get(new StanzaNode.build("ping", NS_URI).add_self_xmlns());
@@ -32,7 +33,7 @@ namespace Xmpp.Xep.Ping {
         public override void detach(XmppStream stream) { }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/xep/0203_delayed_delivery.vala b/xmpp-vala/src/module/xep/0203_delayed_delivery.vala
index 9f9761f2..4dd8a0cb 100644
--- a/xmpp-vala/src/module/xep/0203_delayed_delivery.vala
+++ b/xmpp-vala/src/module/xep/0203_delayed_delivery.vala
@@ -5,6 +5,7 @@ namespace Xmpp.Xep.DelayedDelivery {
 
     public class Module : XmppStreamModule {
         public const string ID = "0203_delayed_delivery";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
         public static void set_message_delay(Message.Stanza message, DateTime datetime) {
             StanzaNode delay_node = (new StanzaNode.build("delay", NS_URI)).add_self_xmlns();
@@ -29,7 +30,7 @@ namespace Xmpp.Xep.DelayedDelivery {
         public override void detach(XmppStream stream) { }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/xep/0280_message_carbons.vala b/xmpp-vala/src/module/xep/0280_message_carbons.vala
index 18b2ecdf..097a4a76 100644
--- a/xmpp-vala/src/module/xep/0280_message_carbons.vala
+++ b/xmpp-vala/src/module/xep/0280_message_carbons.vala
@@ -5,6 +5,7 @@ namespace Xmpp.Xep.MessageCarbons {
 
     public class Module : XmppStreamModule {
         public const string ID = "0280_message_carbons_module";
+        public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
         public void enable(XmppStream stream) {
             Iq.Stanza iq = new Iq.Stanza.set(new StanzaNode.build("enable", NS_URI).add_self_xmlns());
@@ -33,7 +34,7 @@ namespace Xmpp.Xep.MessageCarbons {
         }
 
         public static Module? get_module(XmppStream stream) {
-            return (Module?) stream.get_module(NS_URI, ID);
+            return (Module?) stream.get_module(IDENTITY);
         }
 
         public static void require(XmppStream stream) {
diff --git a/xmpp-vala/src/module/xep/0333_chat_markers.vala b/xmpp-vala/src/module/xep/0333_chat_markers.vala
index 0dc0e637..64388e47 100644
--- a/xmpp-vala/src/module/xep/0333_chat_markers.vala
+++ b/xmpp-vala/src/module/xep/0333_chat_markers.vala
@@ -13,6 +13,7 @@ private const string[] MARKERS = {MARKER_RECEIVED, MARKER_DISPLAYED, MARKER_ACKN
 
 public class Module : XmppStreamModule {
     public const string ID = "0333_chat_markers";
+    public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
 
     public signal void marker_received(XmppStream stream, string jid, string marker, string id);
 
@@ -45,7 +46,7 @@ public class Module : XmppStreamModule {
     }
 
     public static Module? get_module(XmppStream stream) {
-        return (Module?) stream.get_module(NS_URI, ID);
+        return (Module?) stream.get_module(IDENTITY);
     }
 
     public static void require(XmppStream stream) {