diff --git a/State/1/scripts/main.js b/State/1/scripts/main.js
index 935f362..eb0cc83 100644
--- a/State/1/scripts/main.js
+++ b/State/1/scripts/main.js
@@ -1,6 +1,6 @@
 import Download from './Download';
 
-var oDownload = new Download();
+let oDownload = new Download();
 
 $("#download_button").click(function() {
   oDownload.download();