diff --git a/src/costco-csv-worker.js b/src/costco-csv-worker.js
index c172a1d0..720d2fda 100644
--- a/src/costco-csv-worker.js
+++ b/src/costco-csv-worker.js
@@ -1,4 +1,4 @@
-importScripts('lib/underscore.js'); 
+// importScripts('lib/underscore.js'); 
 
 onmessage = function(message) {