diff --git a/lib/noxplayer.adb.js b/lib/noxplayer.adb.js
index 9f3086a..b06ced7 100644
--- a/lib/noxplayer.adb.js
+++ b/lib/noxplayer.adb.js
@@ -3,6 +3,7 @@
 ///////////////////////////////////////////////////////////////////////
 
 var SHELL = require("lib/shell");
+var SYS = require("lib/sys");
 var ADB = require("lib/adb");
 
 function getProcessID(id) {