diff --git a/AUTHORS b/AUTHORS
index f449c372962..e64d98ce90b 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -101,6 +101,7 @@ Luit van Drongelen <luitvd@gmail.com>
 Markus Duft <markus.duft@salomon.at>
 Martin Neubauer <m.ne@gmx.net>
 Mathieu Lonjaret <mathieu.lonjaret@gmail.com>
+Matthew Horsnell <matthew.horsnell@gmail.com>
 Micah Stetson <micah.stetson@gmail.com>
 Michael Elkins <michael.elkins@gmail.com>
 Michael Hoisie <hoisie@gmail.com>
diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index a6dfc41d3d2..010b81829ca 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -157,6 +157,7 @@ Markus Duft <markus.duft@salomon.at>
 Martin Neubauer <m.ne@gmx.net>
 Mathieu Lonjaret <mathieu.lonjaret@gmail.com>
 Matt Jones <mrjones@google.com>
+Matthew Horsnell <matthew.horsnell@gmail.com>
 Maxim Ushakov <ushakov@google.com>
 Micah Stetson <micah.stetson@gmail.com>
 Michael Elkins <michael.elkins@gmail.com>