diff --git a/tempest/tests/identity/admin/test_users.py b/tempest/tests/identity/admin/test_users.py
index 27a214c..1423741 100644
--- a/tempest/tests/identity/admin/test_users.py
+++ b/tempest/tests/identity/admin/test_users.py
@@ -195,6 +195,7 @@
     @attr(type='negative')
     def test_authentication_with_invalid_username(self):
         # Non-existent user's token should not get authenticated
+        self.data.setup_test_user()
         self.assertRaises(exceptions.Unauthorized, self.token_client.auth,
                           'junkuser123', self.data.test_password,
                           self.data.test_tenant)