diff --git a/apps/plugins/calculator.c b/apps/plugins/calculator.c
index 79b948a055..99404765bb 100644
--- a/apps/plugins/calculator.c
+++ b/apps/plugins/calculator.c
@@ -7,7 +7,7 @@
  *                     \/            \/     \/    \/            \/
  * $Id$
  *
- * Copyright (C) 2004 Pengxuan(Isaac)  <tinousus@yahoo.com>
+ * Copyright (C) 2004 Pengxuan Liu (Isaac)
  *
  * All files in this archive are subject to the GNU General Public License.
  * See the file COPYING in the source tree root for full license agreement.
diff --git a/docs/CREDITS b/docs/CREDITS
index ca2801c470..e4c9e92ba1 100644
--- a/docs/CREDITS
+++ b/docs/CREDITS
@@ -234,4 +234,5 @@ Wade Brown
 Vadim Chekan
 Christopher Borcsok
 Victor Cardenas
-Andrew Melville
\ No newline at end of file
+Andrew Melville
+Pengxuan Liu