diff --git a/django/db/models/base.py b/django/db/models/base.py
index bd638e2499..38afc60991 100644
--- a/django/db/models/base.py
+++ b/django/db/models/base.py
@@ -311,7 +311,7 @@ class ModelState(object):
         self.adding = True
 
 
-class Model(six.with_metaclass(ModelBase, object)):
+class Model(six.with_metaclass(ModelBase)):
     _deferred = False
 
     def __init__(self, *args, **kwargs):