diff --git a/AUTHORS b/AUTHORS
index ff1326af6f..d2ebd6ae70 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -103,6 +103,7 @@ Lucio De Re <lucio.dere@gmail.com>
 Luit van Drongelen <luitvd@gmail.com>
 Markus Duft <markus.duft@salomon.at>
 Martin Neubauer <m.ne@gmx.net>
+Mateusz Czapliński <czapkofan@gmail.com>
 Mathieu Lonjaret <mathieu.lonjaret@gmail.com>
 Matthew Horsnell <matthew.horsnell@gmail.com>
 Micah Stetson <micah.stetson@gmail.com>
diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 43850d4770..d70564703c 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -160,6 +160,7 @@ Marcel van Lohuizen <mpvl@golang.org>
 Mark Zavislak <zavislak@google.com>
 Markus Duft <markus.duft@salomon.at>
 Martin Neubauer <m.ne@gmx.net>
+Mateusz Czapliński <czapkofan@gmail.com>
 Mathieu Lonjaret <mathieu.lonjaret@gmail.com>
 Matt Jones <mrjones@google.com>
 Matthew Horsnell <matthew.horsnell@gmail.com>