diff --git a/users/mattn.json b/users/mattn.json
index 65e9fe85..dc652aeb 100644
--- a/users/mattn.json
+++ b/users/mattn.json
@@ -1,5 +1,6 @@
 {
-  "copyright": "Yasuhiro Matsumoto, http://mattn.kaoriya.net/",
-  "url": "http://mattn.kaoriya.net/",
+  "copyright": "Yasuhiro Matsumoto, http://mattn.kaoriya.net",
+  "email": "mattn.jp@gmail.com",
+  "url": "http://mattn.kaoriya.net",
   "theme": "orange"
 }