diff --git a/uncloud/uncloud_pay/models.py b/uncloud/uncloud_pay/models.py
index 551b96d..f4b8fdd 100644
--- a/uncloud/uncloud_pay/models.py
+++ b/uncloud/uncloud_pay/models.py
@@ -134,7 +134,7 @@ class BillRecord():
         self.description = order_record.description
 
         if self.order.starting_date > self.bill.starting_date:
-            self.one_time_price = one_time_price
+            self.one_time_price = order_record.one_time_price
         else:
             self.one_time_price = 0