Missing fs.existsSync about jshint-mode HOT 1 OPEN

diff --git a/jshint-mode.js b/jshint-mode.js
index b8c4bba..22025c8 100644
--- a/jshint-mode.js
+++ b/jshint-mode.js
@@ -14,6 +14,10 @@ var http = require('http'),
     JSLINT = require('./jslint'),
     JSHINT = require('./jshint');

+if (!fs.existsSync) {
+    fs.existsSync = require('path').existsSync;
+}
+
 var hinters = {
   jshint: JSHINT.JSHINT,
   jslint: JSLINT.JSLINT