diff --git a/magnumclient/osc/v1/clusters.py b/magnumclient/osc/v1/clusters.py
index 274ed93260d297cd8c384843cf3c1dc22e08bf2e..e7380e04ea06d103275646cc09b64fa8099b3a25 100644
--- a/magnumclient/osc/v1/clusters.py
+++ b/magnumclient/osc/v1/clusters.py
@@ -263,9 +263,10 @@ class ConfigCluster(command.Command):
             help=_('Directory to save the certificate and config files.'))
         parser.add_argument(
             '--force',
-            metavar='<force>',
+            action='store_true',
+            dest='force',
             default=False,
-            help=_('Directory to save the certificate and config files.'))
+            help=_('Overwrite files if existing.'))
 
         return parser