diff --git a/hb_server/apps/pm/filters.py b/hb_server/apps/pm/filters.py
index 04ce732..f1c928c 100644
--- a/hb_server/apps/pm/filters.py
+++ b/hb_server/apps/pm/filters.py
@@ -18,6 +18,7 @@ class PlanFilterSet(filters.FilterSet):
             queryset = queryset.filter(is_planed=True)
         elif value == 'working':
             queryset = queryset.exclude(state__in=[ProductionPlan.PLAN_STATE_DONE, ProductionPlan.PLAN_MTEST_DONE])
+        return queryset
 
 class SubproductionProgressFilterSet(filters.FilterSet):