diff --git a/docs/topics/testing/advanced.txt b/docs/topics/testing/advanced.txt
index d02912dd31..90111d05ff 100644
--- a/docs/topics/testing/advanced.txt
+++ b/docs/topics/testing/advanced.txt
@@ -45,7 +45,7 @@ The following is a simple unit test using the request factory::
             # Every test needs access to the request factory.
             self.factory = RequestFactory()
             self.user = User.objects.create_user(
-                first_name='jacob', email='jacob@…', password='top_secret')
+                username='jacob', email='jacob@…', password='top_secret')
 
         def test_details(self):
             # Create an instance of a GET request.