diff --git a/proteus/tests/test_model.py b/proteus/tests/test_model.py
index 3e600c87fc..746c65fd81 100644
--- a/proteus/tests/test_model.py
+++ b/proteus/tests/test_model.py
@@ -39,7 +39,7 @@ class TestModel(TestCase):
         admin.create_uid = admin
         admin.create_uid = None
 
-        User(write_uid=False)
+        User(write_uid=None)
 
     def test_one2many(self):
         Group = Model.get('res.group')