--- a/README
+++ b/README
@@ -2,7 +2,7 @@
 
 Copyright (C) 1998-1999 Takaaki Tateishi <ttate@jaist.ac.jp>
 Modified at: <1999/8/19 06:47:14 by ttate>
-License: Free for any use with your own risk!
+License: Free for any use with your own risk! (Ruby's License)
 
 
 1. What's this
--- a/README.euc
+++ b/README.euc
@@ -2,7 +2,7 @@
 
 Copyright (C) 1998-1999 Takaaki Tateishi <ttate@jaist.ac.jp>
 Modified at: <1999/8/19 06:48:01 by ttate>
-License: Free for any use with your own risk!
+License: Free for any use with your own risk! (Ruby's License)
 
 
 1. 
--- a/shadow.c
+++ b/shadow.c
@@ -4,7 +4,7 @@
  * Ruby extention module for using Linux shadow password.
  *
  * Copyright (C) 1998-1999 by Takaaki.Tateishi(ttate@jaist.ac.jp)
- * License: Free for any use with your own risk!
+ * License: Free for any use with your own risk! (Ruby's License)
  * Modified at: <1999/8/19 06:48:18 by ttate>
  */
 
