diff --git a/package.json b/package.json
index 08a2c2c2..d2cd1926 100644
--- a/package.json
+++ b/package.json
@@ -46,6 +46,7 @@
     "classnames": "^2.2.5",
     "electron": "^1.4.5",
     "electron-default-menu": "^1.0.0",
+    "electron-is-dev": "^0.1.2",
     "execa": "^0.5.0",
     "file-type": "^3.9.0",
     "jquery": "^3.1.1",
diff --git a/src/index.js b/src/index.js
index 8ead4a63..e6dfe75f 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,6 +1,6 @@
 const electron = require('electron'); // eslint-disable-line
+const isDev = require('electron-is-dev');
 
-const util = require('./util');
 const menu = require('./menu');
 
 const app = electron.app;
@@ -8,7 +8,7 @@ const BrowserWindow = electron.BrowserWindow;
 
 app.setName('LosslessCut');
 
-if (util.isPackaged()) process.env.NODE_ENV = 'production';
+if (!isDev) process.env.NODE_ENV = 'production';
 
 // Keep a global reference of the window object, if you don't, the window will
 // be closed automatically when the JavaScript object is garbage collected.
diff --git a/src/util.js b/src/util.js
index 37691e59..f8de2853 100644
--- a/src/util.js
+++ b/src/util.js
@@ -14,12 +14,6 @@ function formatDuration(_seconds) {
   return `${hoursPadded}.${minutesPadded}.${secondsPadded}.${msPadded}`;
 }
 
-function isPackaged() {
-  // http://stackoverflow.com/questions/39362292/how-do-i-set-node-env-production-on-electron-app-when-packaged-with-electron-pac
-  return process.execPath.search('electron-prebuilt') === -1;
-}
-
 module.exports = {
   formatDuration,
-  isPackaged,
 };