diff --git a/server/apps/exam/views.py b/server/apps/exam/views.py
index 8a2df89..fe6e689 100644
--- a/server/apps/exam/views.py
+++ b/server/apps/exam/views.py
@@ -610,7 +610,7 @@ class ExamRecordViewSet(ListModelMixin, DestroyModelMixin, RetrieveModelMixin, G
                
         er.took = (now - er.create_time).total_seconds()
         er.end_time = now
-        er.belong_dept=request.user.dept.id
+        er.belong_dept=request.user.dept
         er.is_submited = True
         er.save()
         return Response(ExamRecordListSerializer(instance=er).data)
\ No newline at end of file