diff --git a/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/MultiUserChat.java b/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/MultiUserChat.java
index 7e0c0359b..b80f3582d 100644
--- a/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/MultiUserChat.java
+++ b/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/MultiUserChat.java
@@ -2558,7 +2558,7 @@ public class MultiUserChat {
     }
 
     public boolean serviceSupportsStableIds() {
-        return mucServiceDiscoInfo.containsFeature(MultiUserChatConstants.STABLE_ID_FEATURE);
+        return DiscoverInfo.nullSafeContainsFeature(mucServiceDiscoInfo, MultiUserChatConstants.STABLE_ID_FEATURE);
     }
 
     @Override