diff --git a/asmodee.py b/asmodee.py
index 9bbe922..f2f1f80 100755
--- a/asmodee.py
+++ b/asmodee.py
@@ -1496,7 +1496,7 @@ def invitations(room_id, state): # Reponse aux invitations
 	try:
 		global bot
 		bot.client.join_room(room_id)
-	
+		global modules
 		if ('welcome' in liste_mod):
 			modules[room_id, 'welcome'] = True
 		if ('roll' in liste_mod):