diff --git a/store/models.py b/store/models.py
index 3f2e8dc..e85e135 100644
--- a/store/models.py
+++ b/store/models.py
@@ -577,7 +577,7 @@ class Checklist(models.Model):
         self.price_snapshot = None
 
         snapshot, _ = PriceSnapshot.objects.get_or_create(
-            checklist__id=self.price_snapshot_id,
+            checklist__id=self.id,
             defaults={
                 'yuan_rate': self.yuan_rate,
                 'delivery_price_CN': self.delivery_price_CN,