diff --git a/crc/crchash.h b/crc/crchash.h
index 69c022c..91250bc 100644
--- a/crc/crchash.h
+++ b/crc/crchash.h
@@ -1,6 +1,5 @@
 /*
-** Copyright (C) 2014 Wang Yaofu
-** All rights reserved.
+** The crc unit test is licensed under the Apache License, Version 2.0, and a copy of the license is included in this file.
 **
 **Author:Wang Yaofu voipman@qq.com
 **Description: The header file of class CrcHash.