diff --git a/app.js b/app.js
index 180004f..7a0b111 100644
--- a/app.js
+++ b/app.js
@@ -88,7 +88,7 @@ router.get('/', async (ctx, next) => {
   if (host === 'notes') {
     return await next()
   }
-  const url = `${gitea.apiBase}/repos/${gitea.user}/${gitea.repo}/contents/${encodeURIComponent(host)}.txt`
+  const url = `${gitea.apiBase}/repos/${gitea.user}/${gitea.repo}/contents/${encodeURIComponent(host)}.md`
   const resp = await fetch(url, {
     headers: {
       Accept: 'application/json',