diff --git a/files/classes/user.py b/files/classes/user.py
index 0a2356b27..8b3f20f96 100644
--- a/files/classes/user.py
+++ b/files/classes/user.py
@@ -850,7 +850,7 @@ class User(Base):
 			return g.db.query(ChatMembership).filter(
 				ChatMembership.user_id == self.id,
 				ChatMembership.notification == True,
-				ChatMembership.chat_id.notin_(12,219),
+				ChatMembership.chat_id.notin_((12,219)),
 			).count()
 		return g.db.query(ChatMembership).filter_by(user_id=self.id, notification=True).count()