diff --git a/openedx/core/djangoapps/user_api/tests/test_views.py b/openedx/core/djangoapps/user_api/tests/test_views.py
index 9753f20fca..ffbb6b1750 100644
--- a/openedx/core/djangoapps/user_api/tests/test_views.py
+++ b/openedx/core/djangoapps/user_api/tests/test_views.py
@@ -1071,7 +1071,7 @@ class RegistrationViewTest(ThirdPartyAuthTestMixin, UserAPITestCase):
 
     @ddt.data(
         ('pk', 'PK', 'Bob123', 'Bob123'),
-        ('Pk', 'PK', 'Bob123', 'Bob123'),
+        ('Pk', 'PK', None, ''),
         ('pK', 'PK', 'Bob123@edx.org', 'Bob123_edx_org'),
         ('PK', 'PK', 'Bob123123123123123123123123123123123123', 'Bob123123123123123123123123123'),
         ('us', 'US', 'Bob-1231231&23123+1231(2312312312@3123123123', 'Bob-1231231_23123_1231_2312312'),