diff --git a/AUTHORS b/AUTHORS
index c1128a46c..bba8b8a66 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -8,3 +8,4 @@ Original Authors "mruby developers" are:
    Bjorn De Meyer
    Yuichiro MASUI
    Masamitsu MURASE
+   Masaki Muranaka