diff --git a/script.user.js b/script.user.js
index fe1706f..1304edb 100644
--- a/script.user.js
+++ b/script.user.js
@@ -1,3 +1,4 @@
+/*jshint esversion: 6 */
 // ==UserScript==
 // @name        DarkSnap
 // @namespace   http://tampermonkey.net/