diff --git a/lib/browser/api/menu-item.js b/lib/browser/api/menu-item.js
index 3f4892b59f5a..8103aaf2b7e9 100644
--- a/lib/browser/api/menu-item.js
+++ b/lib/browser/api/menu-item.js
@@ -7,6 +7,11 @@ let nextCommandId = 0
 const MenuItem = function (options) {
   const {Menu} = require('electron')
 
+  // Clone and sanitize the provided options
+  options = Object.assign({}, options)
+  delete options.overrideProperty
+  delete options.overrideReadOnlyProperty
+
   Object.assign(this, options)
 
   if (this.submenu != null && this.submenu.constructor !== Menu) {
diff --git a/spec/api-menu-spec.js b/spec/api-menu-spec.js
index 7cd023b95dba..56c43ad47800 100644
--- a/spec/api-menu-spec.js
+++ b/spec/api-menu-spec.js
@@ -431,7 +431,7 @@ describe('menu module', function () {
   })
 })
 
-describe.only('MenuItem with custom properties in constructor', function () {
+describe('MenuItem with custom properties in constructor', function () {
   it('preserves the custom properties', function () {
     var template = [{
       label: 'menu 1',
@@ -442,11 +442,13 @@ describe.only('MenuItem with custom properties in constructor', function () {
     var menu = Menu.buildFromTemplate(template)
     menu.items[0].submenu.append(new MenuItem({
       label: 'item 1',
-      customProp: 'bar'
+      customProp: 'bar',
+      overrideProperty: 'oops not allowed'
     }))
 
     assert.equal(menu.items[0].customProp, 'foo')
     assert.equal(menu.items[0].submenu.items[0].label, 'item 1')
     assert.equal(menu.items[0].submenu.items[0].customProp, 'bar')
+    assert.notEqual(typeof menu.items[0].submenu.items[0].overrideProperty, 'string')
   })
 })