diff --git a/addons/website/controllers/main.py b/addons/website/controllers/main.py
index ab6f6f08564..5025e5dbd83 100644
--- a/addons/website/controllers/main.py
+++ b/addons/website/controllers/main.py
@@ -414,7 +414,7 @@ class Website(openerp.addons.web.controllers.main.Home):
             action = ServerActions.browse(cr, uid, action_id, context=context)
             if action.state == 'code' and action.website_published:
                 action_res = ServerActions.run(cr, uid, [action_id], context=context)
-                if isinstance(action_res, Response):
+                if isinstance(action_res, werkzeug.wrappers.Response):
                     res = action_res
         if res:
             return res