diff --git a/server.js b/server.js
index 2e4bfd8..3eea0e1 100644
--- a/server.js
+++ b/server.js
@@ -18,6 +18,7 @@ function wrap(handler) {
   return (req, res) =>
     handler(req, res).catch(err => {
       console.log('ERR:', err)
+      res.status(400).end()
     })
 }