diff --git a/dav_base/tests/generic.py b/dav_base/tests/generic.py
index 1c92a6b..9fc2e41 100644
--- a/dav_base/tests/generic.py
+++ b/dav_base/tests/generic.py
@@ -174,7 +174,7 @@ class Url(object):
         self.follow = kwargs.get('follow', False)
 
 
-class UrlsTestCase(SimpleTestCase):
+class UrlsTestCase(TestCase):
     urls = ()
 
     def test_locations(self):