diff --git a/data/model.py b/data/model.py
index a33f80e4c..c047e1602 100644
--- a/data/model.py
+++ b/data/model.py
@@ -831,8 +831,8 @@ def create_repository(namespace, name, creating_user, visibility='private'):
     if creating_user.username != namespace:
       # Permission prototypes only work for orgs
       org = get_organization(namespace)
-      user_clause = (PermissionPrototype.activating_user == creating_user |
-                     PermissionPrototype.activating_user >> None)
+      user_clause = ((PermissionPrototype.activating_user == creating_user) |
+                     (PermissionPrototype.activating_user >> None))
 
       team_protos = (PermissionPrototype
                       .select()