diff --git a/main.js b/main.js
index c596830..a7a46d6 100644
--- a/main.js
+++ b/main.js
@@ -27,7 +27,7 @@ app.on('ready', function() {
   mainWindow.loadUrl('file://' + __dirname + '/index.html');
 
   // Open the DevTools.
-  mainWindow.openDevTools();
+  mainWindow.webContents.openDevTools();
 
   // Emitted when the window is closed.
   mainWindow.on('closed', function() {