diff --git a/server/apps/supervision/views.py b/server/apps/supervision/views.py
index 80f350b..c9b225f 100644
--- a/server/apps/supervision/views.py
+++ b/server/apps/supervision/views.py
@@ -537,7 +537,7 @@ class Task2DoViewSet(ListModelMixin, GenericViewSet):
         else:
             mydept = request.user.dept
             belong_depts = get_child_queryset2(mydept)
-            queryset = queryset.filter(belong_dept = belong_depts)
+            queryset = queryset.filter(belong_dept__in = belong_depts)
         serializer = Task2DoSerializer(queryset, many=True)
         return Response(serializer.data)