diff --git a/lms/djangoapps/courseware/tests/test_module_render.py b/lms/djangoapps/courseware/tests/test_module_render.py
index 94ab4b7e94..71e7c4c958 100644
--- a/lms/djangoapps/courseware/tests/test_module_render.py
+++ b/lms/djangoapps/courseware/tests/test_module_render.py
@@ -127,6 +127,7 @@ class ModuleRenderTestCase(LoginEnrollmentTestCase):
 class TestTOC(TestCase):
     """Check the Table of Contents for a course"""
     def setUp(self):
+        self.maxDiff = None
 
         # Toy courses should be loaded
         self.course_name = 'edX/toy/2012_Fall'