diff --git a/asmodee.py b/asmodee.py
index 3d27179..6ecd3f3 100644
--- a/asmodee.py
+++ b/asmodee.py
@@ -748,6 +748,8 @@ async def modo(room,message): # Definition d'un moderateur
 	lmod = []
 	try:
 		lmod = modos.get(room.room_id)
+		if (lmod is None):
+			lmod = []
 	except:
 		lmod = []
 	if (sender in admins or sender in lmod or sender == bot.api.async_client.whoami()):