diff --git a/ceilometerclient/tests/fakes.py b/ceilometerclient/tests/fakes.py
index ceea4793..1728e5e1 100644
--- a/ceilometerclient/tests/fakes.py
+++ b/ceilometerclient/tests/fakes.py
@@ -29,19 +29,19 @@ def fake_headers():
             'User-Agent': 'python-ceilometerclient'}
 
 
-class FakeServiceCatalog():
+class FakeServiceCatalog(object):
     def url_for(self, endpoint_type, service_type):
         return 'http://192.168.1.5:8004/v1/f14b41234'
 
 
-class FakeKeystone():
+class FakeKeystone(object):
     service_catalog = FakeServiceCatalog()
 
     def __init__(self, auth_token):
         self.auth_token = auth_token
 
 
-class FakeHTTPResponse():
+class FakeHTTPResponse(object):
 
     version = 1.1
 
diff --git a/ceilometerclient/tests/test_utils.py b/ceilometerclient/tests/test_utils.py
index 3d2bac09..6ef1fd11 100644
--- a/ceilometerclient/tests/test_utils.py
+++ b/ceilometerclient/tests/test_utils.py
@@ -25,7 +25,7 @@ from ceilometerclient.tests import utils as test_utils
 class UtilsTest(test_utils.BaseTestCase):
 
     def test_prettytable(self):
-        class Struct:
+        class Struct(object):
             def __init__(self, **entries):
                 self.__dict__.update(entries)
 
@@ -74,7 +74,7 @@ class UtilsTest(test_utils.BaseTestCase):
 ''', stdout.getvalue())
 
     def test_print_list(self):
-        class Foo:
+        class Foo(object):
             def __init__(self, one, two, three):
                 self.one = one
                 self.two = two