diff --git a/layouts/_default/baseof.gmi b/layouts/_default/baseof.gmi
index cd830acf..4e904eab 100644
--- a/layouts/_default/baseof.gmi
+++ b/layouts/_default/baseof.gmi
@@ -35,4 +35,6 @@ You may also want to visit:
 => / 🏡 Home
 {{ range .Site.Menus.main -}}
   => {{ partial "noindex.gmi" (.URL | relURL) }} {{ .Name }}
-{{ end -}}
+{{ end }}
+
+{{ with getenv "HUGO_LAST_UPDATE_HASH" }}=> https://github.com/by-jp/www.byjp.me/tree/{{.}} {{end}}{{ trim (partial "site-last-update.html" | plainify) "\r\n " }}