diff --git a/cms/signals/permissions.py b/cms/signals/permissions.py
index fdd51c1a3ca..d2f2d954cfb 100644
--- a/cms/signals/permissions.py
+++ b/cms/signals/permissions.py
@@ -17,7 +17,7 @@ def post_save_user(instance, raw, created, **kwargs):
     if not creator or not created or creator.is_anonymous:
         return
 
-    page_user = PageUser(pk=instance.pk, created_by=creator)
+    page_user = PageUser(user_ptr_id=instance.pk, created_by=creator)
     page_user.__dict__.update(instance.__dict__)
     page_user.save()