diff --git a/djangorestframework/tests/mixins.py b/djangorestframework/tests/mixins.py
index b9aa4c3bf..da7c4d86e 100644
--- a/djangorestframework/tests/mixins.py
+++ b/djangorestframework/tests/mixins.py
@@ -107,7 +107,7 @@ class TestModelCreation(TestCase):
         response = mixin.post(request)
         self.assertEquals(3, CustomUser.objects.count())
         self.assertEquals(2, response.cleaned_content.groups.count())
-        self.assertEquals('foo', response.cleaned_content.groups.all()[0].name)
+        self.assertEquals('foo1', response.cleaned_content.groups.all()[0].name)
         self.assertEquals('foo2', response.cleaned_content.groups.all()[1].name)