diff --git a/COPYRIGHT b/COPYRIGHT
index d9edce66c2..2c6cd421a6 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -27,6 +27,7 @@ Portions Copyright 1998-2003 Kurt D. Zeilenga.
 Portions Copyright 1998-2003 Net Boolean Incorporated.
 Portions Copyright 1999-2003 Howard Y.H. Chu.
 Portions Copyright 1999-2003 Symas Corporation.
+Portions Copyright 2001-2003 IBM Corporation.
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without