diff --git a/clients/tools/ldapcompare.c b/clients/tools/ldapcompare.c
index 7a6c33dcaa..896bfac5ad 100644
--- a/clients/tools/ldapcompare.c
+++ b/clients/tools/ldapcompare.c
@@ -5,7 +5,6 @@
  * Copyright 1998-2003 The OpenLDAP Foundation.
  * Portions Copyright 1998-2003 Kurt D. Zeilenga.
  * Portions Copyright 1998-2001 Net Boolean Incorporated.
- * Portions Copyright 2001-2003 IBM Corporation.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/clients/tools/ldapdelete.c b/clients/tools/ldapdelete.c
index 041a73d214..b0f13eac84 100644
--- a/clients/tools/ldapdelete.c
+++ b/clients/tools/ldapdelete.c
@@ -4,8 +4,6 @@
  *
  * Copyright 1998-2003 The OpenLDAP Foundation.
  * Portions Copyright 1998-2003 Kurt D. Zeilenga.
- * Portions Copyright 1998-2001 Net Boolean Incorporated.
- * Portions Copyright 2001-2003 IBM Corporation.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/clients/tools/ldapmodify.c b/clients/tools/ldapmodify.c
index d323970e7d..c2c52aeb88 100644
--- a/clients/tools/ldapmodify.c
+++ b/clients/tools/ldapmodify.c
@@ -31,6 +31,7 @@
  * (as part of U-MICH LDAP).  Additional significant contributors
  * include:
  *   Kurt D. Zeilenga
+ *   Norbert Klasen
  */
 
 #include "portable.h"