diff --git a/hosts/lightsail-tokyo/default.nix b/hosts/lightsail-tokyo/default.nix
index 652b63c..6bc357b 100644
--- a/hosts/lightsail-tokyo/default.nix
+++ b/hosts/lightsail-tokyo/default.nix
@@ -270,6 +270,7 @@
         DOMAIN = "git.ny4.dev";
         PROTOCOL = "http+unix";
         ROOT_URL = "https://git.ny4.dev/";
+        SSH_DOMAIN = "tyo0.ny4.dev";
       };
 
       service = {