diff --git a/sale.py b/sale.py
index dd60f8e..17fabd3 100644
--- a/sale.py
+++ b/sale.py
@@ -118,7 +118,7 @@ class Sale(metaclass=PoolMeta):
         try:
             price_list = args['price_list']['id']
         except Exception:
-            price_list = args.get('price_list', None)
+            price_list = args.get('price_list', shop.price_list.id)
 
         try:
             # for kid