diff --git a/bskyweb/templates/base.html b/bskyweb/templates/base.html
index a2d81fc9..42879365 100644
--- a/bskyweb/templates/base.html
+++ b/bskyweb/templates/base.html
@@ -215,6 +215,7 @@
   <meta name="application-name" content="Bluesky">
   <meta name="generator" content="bskyweb">
   <meta property="og:site_name" content="Bluesky Social" />
+  <link rel="application/activity+json" href="" />
 
   {% block html_head_extra -%}{%- endblock %}
 </head>