diff --git a/tripleoclient/v1/overcloud_update.py b/tripleoclient/v1/overcloud_update.py
index 8f2d79a9b..d9c746b96 100644
--- a/tripleoclient/v1/overcloud_update.py
+++ b/tripleoclient/v1/overcloud_update.py
@@ -60,7 +60,7 @@ class UpdatePrepare(DeployOvercloud):
         # In case of update and upgrade we need to force the
         # config_download to false. The heat stack update will be performed
         # by DeployOvercloud class but skipping the config download part.
-        parsed_args.config_download = False
+        parsed_args.stack_only = True
 
         # Add the update-prepare.yaml environment to set noops etc
         templates_dir = (parsed_args.templates or