diff --git a/hb_server/apps/wpm/views.py b/hb_server/apps/wpm/views.py
index 927ab17..cdb81de 100644
--- a/hb_server/apps/wpm/views.py
+++ b/hb_server/apps/wpm/views.py
@@ -158,7 +158,7 @@ class WProductViewSet(ListModelMixin, GenericViewSet):
     半成品
     """
     perms_map={'*':'*'}
-    queryset = WProduct.objects.select_related('step', 'material').filter(is_hidden=False).exclude(operation=None)
+    queryset = WProduct.objects.select_related('step', 'material').filter(is_hidden=False, operation=None)
     serializer_class = WProductListSerializer
     filterset_fields = ['step', 'subproduction_plan', 'material', 'step__process', 'act_state']
     search_fields = ['number']