diff --git a/tools/config/venus-config-generator.conf b/tools/config/venus-config-generator.conf
index 9d57a9b..efea2bd 100644
--- a/tools/config/venus-config-generator.conf
+++ b/tools/config/venus-config-generator.conf
@@ -9,4 +9,5 @@ namespace = oslo.log
 namespace = oslo.service.service
 namespace = oslo.service.periodic_task
 namespace = oslo.service.sslutils
+namespace = oslo.versionedobjects
 namespace = keystonemiddleware.auth_token