diff --git a/addons/product/product.py b/addons/product/product.py
index 863081a8155..7b9ed2085d2 100644
--- a/addons/product/product.py
+++ b/addons/product/product.py
@@ -250,9 +250,9 @@ class product_template(osv.osv):
                 result[product.id] = {field:False}
             result[product.id]['seller_delay'] = 1
             if product.seller_ids:
-                partner_list = sorted([(partner_id.sequence, partner_id)
+                partner_list = [(partner_id.sequence, partner_id)
                                        for partner_id in  product.seller_ids
-                                       if partner_id and isinstance(partner_id.sequence, (int, long))])
+                                       if partner_id and isinstance(partner_id.sequence, (int, long))]
                 main_supplier = partner_list and partner_list[0] and partner_list[0][1] or False
                 result[product.id]['seller_delay'] =  main_supplier and main_supplier.delay or 1
                 result[product.id]['seller_qty'] =  main_supplier and main_supplier.qty or 0.0