diff --git a/test_server/crm/views.py b/test_server/crm/views.py
index 5faef9c..9f5601f 100644
--- a/test_server/crm/views.py
+++ b/test_server/crm/views.py
@@ -243,7 +243,7 @@ class ConsumerViewSet(ModelViewSet):
         if self.request.user.is_superuser:
             return queryset
         if self.request.query_params.get('adminoff', None):
-            return queryset.filter(create_admin=None)
+            return queryset.filter(create_admin__isnull=True)
         roles = self.request.user.roles.values_list('name', flat=True)
         if '普通管理' in roles:
             queryset = queryset.filter(create_admin = self.request.user)