diff --git a/cms/envs/common.py b/cms/envs/common.py
index 8effc773e0..3d4f2d2e9d 100644
--- a/cms/envs/common.py
+++ b/cms/envs/common.py
@@ -263,4 +263,7 @@ INSTALLED_APPS = (
     'pipeline',
     'staticfiles',
     'static_replace',
+
+    # comment common
+    'django_comment_common',
 )
diff --git a/cms/envs/dev.py b/cms/envs/dev.py
index dbf9c5574c..f3f972be42 100644
--- a/cms/envs/dev.py
+++ b/cms/envs/dev.py
@@ -118,8 +118,7 @@ PIPELINE_SASS_ARGUMENTS = '--debug-info --require {proj_dir}/static/sass/bourbon
 
 ################################ DEBUG TOOLBAR #################################
 INSTALLED_APPS += ('debug_toolbar', 'debug_toolbar_mongo')
-MIDDLEWARE_CLASSES += ('django_comment_client.utils.QueryCountDebugMiddleware',
-                       'debug_toolbar.middleware.DebugToolbarMiddleware',)
+MIDDLEWARE_CLASSES += ('debug_toolbar.middleware.DebugToolbarMiddleware',)
 INTERNAL_IPS = ('127.0.0.1',)
 
 DEBUG_TOOLBAR_PANELS = (