diff --git a/.mailmap b/.mailmap
index 2af2d7cd9b63..f5147dd0406d 100644
--- a/.mailmap
+++ b/.mailmap
@@ -16,6 +16,7 @@
 <jmckenty@gmail.com> <jmckenty@joshua-mckentys-macbook-pro.local>
 <jmckenty@gmail.com> <joshua.mckenty@nasa.gov>
 <justin@fathomdb.com> <justinsb@justinsb-desktop>
+<masumotok@nttdata.co.jp> <root@openstack2-api> <masumotok@nttdata.co.jp> Masumoto<masumotok@nttdata.co.jp>
 <mordred@inaugust.com> <mordred@hudson>
 <paul@openstack.org> <pvoccio@castor.local>
 <paul@openstack.org> <paul.voccio@rackspace.com>
diff --git a/Authors b/Authors
index 82e07a6b58ef..aa91124f740b 100644
--- a/Authors
+++ b/Authors
@@ -26,7 +26,7 @@ Josh Durgin <joshd@hq.newdream.net>
 Josh Kearney <josh.kearney@rackspace.com>
 Joshua McKenty <jmckenty@gmail.com>
 Justin Santa Barbara <justin@fathomdb.com>
-Kei Masumoto <masumotok@nttdata.co.jp>
+Kei Masumoto <masumotok@nttdata.co.jp> 
 Ken Pepple <ken.pepple@gmail.com>
 Koji Iida <iida.koji@lab.ntt.co.jp>
 Lorin Hochstein <lorin@isi.edu>
</div><div class="naked_ctrl">
<form action="/index.cgi/larger-text" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://opendev.org/openstack/nova/commit/e56376d2fc67b7e291745012aafab392aba5aa8c.diff">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://opendev.org/openstack/nova/commit/e56376d2fc67b7e291745012aafab392aba5aa8c.diff" size="22" /></label> <label>モード: <select name="naked_post_mode">
<option value="default">デフォルト</option>
<option value="speech">音声ブラウザ</option>
<option value="ruby">ルビ付き</option>
<option value="contrast">配色反転</option>
<option value="larger-text" selected="selected">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>