diff --git a/THANKS b/THANKS
index 2d67213aa..9cc45d6be 100644
--- a/THANKS
+++ b/THANKS
@@ -28,6 +28,7 @@ Eugene Doudine <dudin@np.nk.nornik.ru>
 Frank Mehnert <fm3@os.inf.tu-dresden.de>
 Goran Koruga <goran.koruga@hermes.si>
 Hal Snyder <hal@vailsys.com>
+HASEGAWA Tomoki <thasegawa@mta.biglobe.ne.jp>
 Heikki Vatiainen <hessu@cs.tut.fi>
 Heiko Schroeder <heiko@pool.informatik.rwth-aachen.de>
 Herbert Nachtnebel <nachtneb@iaee.tuwien.ac.at>