diff --git a/lib/common/init.js b/lib/common/init.js
index d732352a30514..21d1ac1a930e7 100644
--- a/lib/common/init.js
+++ b/lib/common/init.js
@@ -1,4 +1,5 @@
 const timers = require('timers')
+const util = require('util')
 
 process.atomBinding = require('./atom-binding-setup')(process.binding, process.type)
 
@@ -28,6 +29,12 @@ if (process.type === 'browser') {
   // recalculate the timeout in browser process.
   global.setTimeout = wrapWithActivateUvLoop(timers.setTimeout)
   global.setInterval = wrapWithActivateUvLoop(timers.setInterval)
+
+  global.setTimeout[util.promisify.custom] = function (timeout) {
+    return new Promise(resolve => {
+      global.setTimeout(resolve, timeout)
+    })
+  }
 }
 
 if (process.platform === 'win32') {