AUTHORS      | 1 +
 CONTRIBUTORS | 1 +

diff --git a/AUTHORS b/AUTHORS
index 6fef72b8401011629736691520c73c3f6213a20e..613b01d7c11f7b527405191d39eb041db7ee17ad 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -61,6 +61,7 @@ Mathieu Lonjaret <mathieu.lonjaret@gmail.com>
 Micah Stetson <micah.stetson@gmail.com>
 Michael Elkins <michael.elkins@gmail.com>
 Michael Hoisie <hoisie@gmail.com>
+Mikio Hara <mikioh.mikioh@gmail.com>
 Moriyoshi Koizumi <mozo@mozo.jp>
 Môshe van der Sterre <moshevds@gmail.com>
 Nicholas Waples <nwaples@gmail.com>
diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 0ab84599db173f4996c443a9ddb64a5782cb55da..72907ff2c9cfc5371754cb2d7d2894d5757c8b06 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -104,6 +104,7 @@ Maxim Ushakov <ushakov@google.com>
 Micah Stetson <micah.stetson@gmail.com>
 Michael Elkins <michael.elkins@gmail.com>
 Michael Hoisie <hoisie@gmail.com>
+Mikio Hara <mikioh.mikioh@gmail.com>
 Moriyoshi Koizumi <mozo@mozo.jp>
 Môshe van der Sterre <moshevds@gmail.com>
 Nicholas Waples <nwaples@gmail.com>