diff --git a/hb_server/apps/inm/services.py b/hb_server/apps/inm/services.py
index d227e62..1c3c743 100644
--- a/hb_server/apps/inm/services.py
+++ b/hb_server/apps/inm/services.py
@@ -38,12 +38,12 @@ class InmService:
 
                 # 如果是采购入库更新采购订单表
                 if instance.type == FIFO.FIFO_TYPE_PUR_IN:
-                    pur_order_item = i.pur_order_item
-                    delivered_count = pur_order_item.delivered_count + i.count
-                    if delivered_count > pur_order_item.count:
+                    pu_order_item = i.pu_order_item
+                    delivered_count = pu_order_item.delivered_count + i.count
+                    if delivered_count > pu_order_item.count:
                         raise ValidationError('超出采购订单所需量')
-                    pur_order_item.delivered_count = delivered_count
-                    pur_order_item.save()
+                    pu_order_item.delivered_count = delivered_count
+                    pu_order_item.save()
 
         elif instance.type in [FIFO.FIFO_TYPE_DO_OUT, FIFO.FIFO_TYPE_SALE_OUT]: # 生产领料 销售出库
             # 更新相关表