1 files changed, 4 insertions, 2 deletions
diff --git a/bignum.c b/bignum.c
index 37f02a3752..f9dc5fe611 100644
--- a/bignum.c
+++ b/bignum.c
@@ -1,4 +1,4 @@
-/************************************************
+/**********************************************************************
 
   bignum.c -
 
@@ -6,7 +6,9 @@
   $Date$
   created at: Fri Jun 10 00:48:55 JST 1994
 
-************************************************/
+  Copyright (C) 1993-2000 Yukihiro Matsumoto
+
+**********************************************************************/
 
 #include "ruby.h"
 #include <math.h>