diff --git a/uncloud/metadata/main.py b/uncloud/metadata/main.py
index ccda60e..c47364e 100644
--- a/uncloud/metadata/main.py
+++ b/uncloud/metadata/main.py
@@ -13,8 +13,10 @@ api = Api(app)
 
 app.logger.handlers.clear()
 
+DEFAULT_PORT=1234
+
 arg_parser = argparse.ArgumentParser('metadata', add_help=False)
-arg_parser.add_argument('--port', '-p', default=80, help='By default bind to port 80')
+arg_parser.add_argument('--port', '-p', default=DEFAULT_PORT, help='By default bind to port {}'.format(DEFAULT_PORT))
 
 
 @app.errorhandler(Exception)