diff --git a/regnual/regnual.c b/regnual/regnual.c
index 9d08fba..107b153 100644
--- a/regnual/regnual.c
+++ b/regnual/regnual.c
@@ -1,7 +1,7 @@
 /*
  * regnual.c -- Firmware installation for STM32F103 Flash ROM
  *
- * Copyright (C) 2012 Free Software Initiative of Japan
+ * Copyright (C) 2012, 2013 Free Software Initiative of Japan
  * Author: NIIBE Yutaka <gniibe@fsij.org>
  *
  * This file is a part of Gnuk, a GnuPG USB Token implementation.