diff --git a/AUTHORS b/AUTHORS
index 36eca92b2..3791ad723 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -18,3 +18,4 @@ Original Authors "mruby developers" are:
    Narihiro Nakamura
    Yuichi Nishiwaki
    Tatsuhiko Kubo
+   Takeshi Watanabe