diff --git a/djangocms_multisite/middleware.py b/djangocms_multisite/middleware.py
index 113f663..115f462 100644
--- a/djangocms_multisite/middleware.py
+++ b/djangocms_multisite/middleware.py
@@ -41,8 +41,7 @@ class CMSMultiSiteMiddleware(object):
             set_urlconf(None)
 
     def process_response(self, request, response):
-        if getattr(request, 'urlconf', None):
-            patch_vary_headers(response, ('Host',))
+        patch_vary_headers(response, ('Host',))
         # set back to default urlconf
         set_urlconf(None)
         return response