diff --git a/sf_manufacturing/models/stock.py b/sf_manufacturing/models/stock.py
index 853634f7..4162ed68 100644
--- a/sf_manufacturing/models/stock.py
+++ b/sf_manufacturing/models/stock.py
@@ -318,7 +318,7 @@ class StockRule(models.Model):
                 if production_item.product_id.id in product_id_to_production_names:
                     # 同一个产品多个制造订单对应一个编程单和模型库
                     # 只调用一次fetchCNC，并将所有生产订单的名称作为字符串传递
-                    if not production_item.programming_no and production.production_type == '自动化产线加工':
+                    if not production_item.programming_no and production_item.production_type == '自动化产线加工':
                         if not production_programming.programming_no:
                             production_item.fetchCNC(
                                 ', '.join(product_id_to_production_names[production_item.product_id.id]))