diff --git a/src/controllers/well-known/host-meta.ts b/src/controllers/well-known/host-meta.ts
index 8c0b810..85da11b 100644
--- a/src/controllers/well-known/host-meta.ts
+++ b/src/controllers/well-known/host-meta.ts
@@ -2,13 +2,18 @@ import { Conf } from '@/config.ts';
 
 import type { AppController } from '@/app.ts';
 
+/** https://datatracker.ietf.org/doc/html/rfc6415 */
 const hostMetaController: AppController = (c) => {
   const template = Conf.local('/.well-known/webfinger?resource={uri}');
 
   c.header('content-type', 'application/xrd+xml');
 
   return c.body(
-    `<?xml version="1.0" encoding="UTF-8"?><XRD xmlns="http://docs.oasis-open.org/ns/xri/xrd-1.0"><Link rel="lrdd" template="${template}" type="application/xrd+xml" /></XRD>`,
+    `<?xml version="1.0" encoding="UTF-8"?>
+<XRD xmlns="http://docs.oasis-open.org/ns/xri/xrd-1.0">
+  <Link rel="lrdd" template="${template}" type="application/xrd+xml" />
+</XRD>
+`,
   );
 };