diff --git a/xmpp_tg/xmpp.py b/xmpp_tg/xmpp.py
index 503ad13..09157ca 100644
--- a/xmpp_tg/xmpp.py
+++ b/xmpp_tg/xmpp.py
@@ -648,7 +648,7 @@ class XMPPTelegram(ComponentXMPP):
                 self.tg_connections[hndl.jid].invoke( DeleteMessagesRequest([msg_id], revoke = True) )
         
 
-    def process_chat_user_command(self, iq):
+    def process_chat_user_command(self, msg):
         logging.info("received command "+str(msg["body"])+" from "+str(msg["from"])+" for "+str(msg["to"]))
         is_command = msg["body"].startswith("!") and msg["body"][1] != "_"