diff --git a/AUTHORS b/AUTHORS
index 1f5733c05..13a4c4994 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -27,6 +27,7 @@ James Patterson <jamespatterson@operamail.com> <jpjp@users.noreply.github.com>
 Jens Diemer <github.com@jensdiemer.de> <git@jensdiemer.de>
 Jochen Voss <voss@seehuhn.de>
 Karol Różycki <rozycki.karol@gmail.com>
+Kamada Ken'ichi <kamada@nanohz.org>
 Lode Hoste <zillode@zillode.be>
 Marcin Dziadus <dziadus.marcin@gmail.com>
 Marc Laporte <marc@marclaporte.com>
diff --git a/NICKS b/NICKS
index 4de20551f..c72e0b16e 100644
--- a/NICKS
+++ b/NICKS
@@ -24,6 +24,7 @@ frioux		<frew@afoolishmanifesto.com> <frioux@gmail.com>
 gillisig	<gilli@vx.is>
 jedie		<github.com@jensdiemer.de> <git@jensdiemer.de>
 jpjp		<jamespatterson@operamail.com> <jpjp@users.noreply.github.com>
+kamadak		<kamada@nanohz.org>
 kilburn		<kilburn@la3.org>
 kozec		<kozec@kozec.com>
 krozycki	<rozycki.karol@gmail.com>
diff --git a/gui/index.html b/gui/index.html
index 5df48eee8..3c651b044 100644
--- a/gui/index.html
+++ b/gui/index.html
@@ -965,6 +965,7 @@
           <li>James Patterson</li>
           <li>Jens Diemer</li>
           <li>Jochen Voss</li>
+          <li>Kamada Ken'ichi</li>
           <li>Karol Różycki</li>
           <li>Lode Hoste</li>
           <li>Marc Laporte</li>