diff --git a/domains/kter.json b/domains/kter.json
index 7c7eb1cf35..f81df4a974 100644
--- a/domains/kter.json
+++ b/domains/kter.json
@@ -1,6 +1,7 @@
 {
     "owner": {
-        "username": "kter"
+        "username": "kter",
+        "email": "takahashi@tomohiko.io"
     },
     "records": {
         "CNAME": "www.tomohiko.io"