diff --git a/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/packet/GroupChatInvitation.java b/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/packet/GroupChatInvitation.java
index ef359e5c1..6387590c8 100644
--- a/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/packet/GroupChatInvitation.java
+++ b/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/packet/GroupChatInvitation.java
@@ -20,6 +20,7 @@ import javax.xml.namespace.QName;
 
 import org.jivesoftware.smack.packet.ExtensionElement;
 import org.jivesoftware.smack.packet.Stanza;
+import org.jivesoftware.smack.util.Objects;
 import org.jivesoftware.smack.util.XmlStringBuilder;
 
 import org.jxmpp.jid.EntityBareJid;
@@ -78,7 +79,7 @@ public class GroupChatInvitation implements ExtensionElement {
      * @param roomAddress the address of the group chat room.
      */
     public GroupChatInvitation(EntityBareJid roomAddress) {
-        this.roomAddress = roomAddress;
+        this.roomAddress = Objects.requireNonNull(null);
     }
 
     /**