diff --git a/kallithea/tests/api/api_base.py b/kallithea/tests/api/api_base.py
--- a/kallithea/tests/api/api_base.py
+++ b/kallithea/tests/api/api_base.py
@@ -109,7 +109,6 @@ class _BaseTestApi(object):
         pass
 
     def setup_method(self, method):
-        self.maxDiff = None
         make_user_group()
         make_repo_group()
 
diff --git a/kallithea/tests/base.py b/kallithea/tests/base.py
--- a/kallithea/tests/base.py
+++ b/kallithea/tests/base.py
@@ -149,7 +149,6 @@ class TestController(object):
         self.wsgiapp = pylons.test.pylonsapp
         self.init_stack(self.wsgiapp.config)
         self.app = TestApp(self.wsgiapp)
-        self.maxDiff = None
         self.index_location = config['app_conf']['index_dir']
         return self.app