diff --git a/addons/website_sale/controllers/main.py b/addons/website_sale/controllers/main.py
index 7544a9d654d..0ab1796ccab 100644
--- a/addons/website_sale/controllers/main.py
+++ b/addons/website_sale/controllers/main.py
@@ -194,9 +194,8 @@ class website_sale(http.Controller):
         styles = style_obj.browse(cr, uid, style_ids, context=context)
 
         category_obj = pool['product.public.category']
-        category_ids = category_obj.search(cr, uid, [], context=context)
-        categories = category_obj.browse(cr, uid, category_ids, context=context)
-        categs = filter(lambda x: not x.parent_id, categories)
+        category_ids = category_obj.search(cr, uid, [('parent_id', '=', False)], context=context)
+        categs = category_obj.browse(cr, uid, category_ids, context=context)
 
         attributes_obj = request.registry['product.attribute']
         attributes_ids = attributes_obj.search(cr, uid, [], context=context)