diff --git a/static/js/pandora.js b/static/js/pandora.js
index 0cfd810b..de76e5a1 100644
--- a/static/js/pandora.js
+++ b/static/js/pandora.js
@@ -1,5 +1,7 @@
 // vim: et:ts=4:sw=4:sts=4:ft=javascript
 
+'use strict';
+
 /*
 ---- UI Tree ----
 appPanel