diff --git a/jikimo_purchase_request/models/mrp_production.py b/jikimo_purchase_request/models/mrp_production.py
index 38331d87..6250c79e 100644
--- a/jikimo_purchase_request/models/mrp_production.py
+++ b/jikimo_purchase_request/models/mrp_production.py
@@ -36,7 +36,7 @@ class MrpProduction(models.Model):
         # else:
         #     pr_ids = self.env['purchase.request'].sudo().search([('origin', 'like', self.name)])
         # 由于采购申请合并了所有销售订单行的采购，所以不区分产品
-        mrp_names = self.env['mrp.production'].search([('origin', '=', item.origin)]).mapped('name')
+        mrp_names = self.env['mrp.production'].search([('origin', '=', self.origin)]).mapped('name')
         pr_ids = self.env['purchase.request'].sudo().search([('origin', 'in', mrp_names)])