diff --git a/apps/tickets/api/relation.py b/apps/tickets/api/relation.py
index 674be316c..cbb661259 100644
--- a/apps/tickets/api/relation.py
+++ b/apps/tickets/api/relation.py
@@ -17,6 +17,7 @@ class TicketSessionRelationViewSet(CreateModelMixin, JMSGenericViewSet):
 
 # Todo: 放到上面的 ViewSet 中
 class TicketSessionApi(views.APIView):
+    perm_model = TicketSession
 
     def get(self, request, *args, **kwargs):
         with tmp_to_root_org():