diff --git a/apps/inm/services.py b/apps/inm/services.py
index 4b8252dd..c011b801 100644
--- a/apps/inm/services.py
+++ b/apps/inm/services.py
@@ -114,7 +114,7 @@ def do_in(item: MIOItem):
     生产入库后更新车间物料
     """
     mio = item.mio
-    if mio.wm and mio.wm.defect is not None:
+    if item.wm and item.wm.defect is not None:
         raise ParseError("不合格物料无法入库")
     belong_dept = mio.belong_dept
     mgroup = mio.mgroup