diff --git a/etc/magnum/magnum-config-generator.conf b/etc/magnum/magnum-config-generator.conf
index 23dc094e76..ffb8ef9af0 100644
--- a/etc/magnum/magnum-config-generator.conf
+++ b/etc/magnum/magnum-config-generator.conf
@@ -11,4 +11,5 @@ namespace = oslo.middleware.cors
 namespace = oslo.policy
 namespace = oslo.service.periodic_task
 namespace = oslo.service.service
+namespace = oslo.versionedobjects
 namespace = keystonemiddleware.auth_token