diff --git a/lib/index.js b/lib/index.js
index 864a6998..ba9ca10e 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -245,9 +245,14 @@ export default function slackin ({
     let { name } = slack.org
     let { active, total } = slack.users
     if (!name) return res.send(404)
-    let dom = splash({ coc, path, name, org, channels, active, total, large, iframe: true })
+    let page = dom('html',
+      dom('head',
+        dom("script src=https://www.google.com/recaptcha/api.js")
+      ),
+      splash({ coc, path, name, org, channels, active, total, large, gcaptcha_sitekey, iframe: true })
+    )
     res.type('html')
-    res.send(dom.toHTML())
+    res.send(page.toHTML())
   })
 
   app.get('/.well-known/acme-challenge/:id', (req, res) => {