diff --git a/sky/tools/flutter_gdb b/sky/tools/flutter_gdb index 78e435eccb44e..ee62dc52fbd6e 100755 --- a/sky/tools/flutter_gdb +++ b/sky/tools/flutter_gdb @@ -223,6 +223,7 @@ def main(): subparsers = parser.add_subparsers(help='sub-command help') parser.add_argument('--adb', type=str, help='path to ADB tool') parser.add_argument('--device', type=str, help='serial number of the target device') + parser.set_defaults(func=lambda args: parser.print_help()) commands = [ GdbClient(),