diff --git a/.mailmap b/.mailmap
index 233b65704..c406e23a4 100644
--- a/.mailmap
+++ b/.mailmap
@@ -6,3 +6,4 @@ Suzuki, Toshiya (鈴木俊哉) <mpsuzuki@hiroshima-u.ac.jp> <sssa@flavor1.ipc.hi
 Suzuki, Toshiya (鈴木俊哉) <mpsuzuki@hiroshima-u.ac.jp> sssa <sssa@IPA2004-mps.local>
 Suzuki, Toshiya (鈴木俊哉) <mpsuzuki@hiroshima-u.ac.jp> suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
 Ben Wagner <bungeman@gmail.com> Bungeman <bungeman@gmail.com>
+Ewald Hew (Hew Yih Shiuan 丘毅宣) <ewaldhew@gmail.com>