Chameleon outline: a REST-to-GRPC gateway
diff --git a/voltha/main.py b/voltha/main.py
index d4eda83..5c87795 100755
--- a/voltha/main.py
+++ b/voltha/main.py
@@ -94,7 +94,7 @@
                         help=_help)
 
     _help = ('unique string id of this voltha instance (default: %s)'
-             % defs['interface'])
+             % defs['instance_id'])
     parser.add_argument('-i', '--instance-id',
                         dest='instance_id',
                         action='store',