diff --git a/openstack_auth/tests/data_v3.py b/openstack_auth/tests/data_v3.py
index 257c304..7053091 100644
--- a/openstack_auth/tests/data_v3.py
+++ b/openstack_auth/tests/data_v3.py
@@ -38,7 +38,7 @@ class TestResponse(requests.Response):
 
     def __init__(self, data):
         self._text = None
-        super(TestResponse, self)
+        super(TestResponse, self).__init__()
         if isinstance(data, dict):
             self.status_code = data.get('status_code', 200)
             self.headers = data.get('headers', None)