diff --git a/addons/website/models/ir_http.py b/addons/website/models/ir_http.py
index 358f105b0d0..d2b5c437ea6 100644
--- a/addons/website/models/ir_http.py
+++ b/addons/website/models/ir_http.py
@@ -106,6 +106,8 @@ class ir_http(orm.AbstractModel):
             if generated_path != current_path:
                 if request.lang != request.website.default_lang_code:
                     path = '/' + request.lang + path
+                if request.httprequest.query_string:
+                    path += '?' + request.httprequest.query_string
                 return werkzeug.utils.redirect(path)
 
     def _serve_attachment(self):