diff --git a/client/service-worker.js b/client/service-worker.js
index f604f26..9cec2d7 100644
--- a/client/service-worker.js
+++ b/client/service-worker.js
@@ -4,6 +4,7 @@ var urlsToCache = [
   '/styles.css',
   '/scripts/network.js',
   '/scripts/ui.js',
+  '/scripts/clipboard.js',
   '/sounds/blop.mp3',
   '/images/favicon-96x96.png'
 ];