diff --git a/sf_manufacturing/models/mrp_production.py b/sf_manufacturing/models/mrp_production.py
index 971f331e..52c5f463 100644
--- a/sf_manufacturing/models/mrp_production.py
+++ b/sf_manufacturing/models/mrp_production.py
@@ -280,8 +280,8 @@ class MrpProduction(models.Model):
                     # 如果匹配成功，提取结果
                     if match:
                         product_name = match.group(0)
-                    if production_id.picking_id.sale_order_id:
-                        sale_order = production_id.picking_id.sale_order_id
+                    if production_id.sale_order_id:
+                        sale_order = production_id.sale_order_id
                     else:
                         sale_order_name = ''
                         match = re.search(r'(S\d+)', production_id.product_id.name)