diff --git a/website/src/index.js b/website/src/index.js
index 26434960b0..d34857267d 100644
--- a/website/src/index.js
+++ b/website/src/index.js
@@ -4,6 +4,7 @@
 // In production, the es6 code is pre-transpiled so it doesn't need it
 if (process.env.NODE_ENV !== 'production') {
   require('babel-register');
+  require('babel-polyfill');
 }
 
 // Only do the minimal amount of work before forking just in case of a dyno restart