diff --git a/src/main-process/atom-portable.js b/src/main-process/atom-portable.js
index 339625ab3..24d1b1429 100644
--- a/src/main-process/atom-portable.js
+++ b/src/main-process/atom-portable.js
@@ -4,7 +4,7 @@ const {ipcMain} = require('electron')
 
 module.exports = class AtomPortable {
   static getPortableAtomHomePath () {
-    var execDirectoryPath = path.dirname(process.execPath)
+    const execDirectoryPath = path.dirname(process.execPath)
     return path.join(execDirectoryPath, '..', '.atom')
   }