diff --git a/pkgs/puppy/bin/puppy.dart b/pkgs/puppy/bin/puppy.dart
index 100da2b2..450ac0ca 100755
--- a/pkgs/puppy/bin/puppy.dart
+++ b/pkgs/puppy/bin/puppy.dart
@@ -1,3 +1,7 @@
+// Copyright (c) 2025, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
 import 'package:args/command_runner.dart';
 import 'package:puppy/src/map_command.dart';