diff --git a/lib/preload.js b/lib/preload.js
index f3d1ad7..2a75d12 100644
--- a/lib/preload.js
+++ b/lib/preload.js
@@ -4,6 +4,8 @@
  */
 
 (function () {
+  var module = require('module')
+  var path = require('path')
   var electron = require('electron');
   var serialize = require('serializerr');
   var browserGlobals = require('./browser-globals');
@@ -35,6 +37,17 @@
   if (globals.console) {
     consoleHook();
   }
+  
+  // setup NODE_PATH
+  var isWin = /^win/.test(process.platform);
+  var pathDelimiter = isWin ? ':' : ';';
+  var nodePaths = process.env.NODE_PATH
+    ? process.env.NODE_PATH.split(pathDelimiter)
+    : []
+  nodePaths.forEach(function (nodePath) {
+    var fullNodePath = path.join(cwd, process.env.NODE_PATH)
+    module.globalPaths.push(fullNodePath)
+  })
 
   // in DevTools console (i.e. REPL), these will be
   // undefined to mimic Node REPL