diff --git a/heat/tests/test_random_string.py b/heat/tests/test_random_string.py
index 27d26f331f..b00d58be0e 100644
--- a/heat/tests/test_random_string.py
+++ b/heat/tests/test_random_string.py
@@ -42,7 +42,7 @@ Resources:
 '''
 
     def setUp(self):
-        super(HeatTestCase, self).setUp()
+        super(TestRandomString, self).setUp()
         self.ctx = utils.dummy_context()
 
     def create_stack(self, template):