diff --git a/src/main/java/eu/siacs/conversations/services/NotificationService.java b/src/main/java/eu/siacs/conversations/services/NotificationService.java
index 97e6039bf..b32e2cb6f 100644
--- a/src/main/java/eu/siacs/conversations/services/NotificationService.java
+++ b/src/main/java/eu/siacs/conversations/services/NotificationService.java
@@ -953,7 +953,7 @@ public class NotificationService {
 
         long lastNotificationTimestamp = ensureLastNotificationTimeByConversation().getLong(conversation.getUuid(), 0L);
 
-        return (System.currentTimeMillis() - lastNotificationTimestamp) > throttlingPeriod;
+        return (System.currentTimeMillis() - lastNotificationTimestamp) < throttlingPeriod;
     }
 
     private SharedPreferences ensureLastNotificationTimeByConversation() {