diff --git a/umap/settings/base.py b/umap/settings/base.py
index d99ed112..73513c4d 100644
--- a/umap/settings/base.py
+++ b/umap/settings/base.py
@@ -135,8 +135,13 @@ TEMPLATE_LOADERS = (
 # Middleware
 #==============================================================================
 
-MIDDLEWARE_CLASSES += (
+MIDDLEWARE_CLASSES = (
+    'django.contrib.sessions.middleware.SessionMiddleware',
     'django.middleware.locale.LocaleMiddleware',
+    'django.middleware.common.CommonMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.http.ConditionalGetMiddleware',
 )