diff --git a/lxc.js b/lxc.js
index b8d524b..69efd16 100644
--- a/lxc.js
+++ b/lxc.js
@@ -1,3 +1,5 @@
+'use strict';
+
 module.exports = function(config){
 	var obj = {};
 	var cmd = require('node-cmd');