diff --git a/WavFile/WavChannelMask.cs b/WavFile/WavChannelMask.cs
index a0e4907..45f632d 100644
--- a/WavFile/WavChannelMask.cs
+++ b/WavFile/WavChannelMask.cs
@@ -1,7 +1,5 @@
-/*
- * WavFile
- * Copyright © Wiesław Šoltés 2010-2012. All Rights Reserved
- */
+// Copyright (c) Wiesław Šoltés. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
 namespace WavFile
 {