diff --git a/addons/website/models/website.py b/addons/website/models/website.py
index 41565fb031a..a5ff58608c1 100644
--- a/addons/website/models/website.py
+++ b/addons/website/models/website.py
@@ -654,7 +654,7 @@ class Website(models.Model):
 
     @api.model
     def is_public_user(self):
-        return request.env.user.id == request.website.user_id.id
+        return request.env.user.id == request.website._get_cached('user_id')
 
     @api.model
     def viewref(self, view_id, raise_if_not_found=True):