diff --git a/docs/api/menu-item.md b/docs/api/menu-item.md
index ddf8d13c3eca..85e47e6a0dc1 100644
--- a/docs/api/menu-item.md
+++ b/docs/api/menu-item.md
@@ -17,7 +17,7 @@
   * `enabled` Boolean
   * `visible` Boolean
   * `checked` Boolean
-  * `groupId` Boolean - Should be specified for `radio` type menu item
+  * `groupId` Integer - Should be specified for `radio` type menu item
   * `submenu` Menu - Should be specified for `submenu` type menu item, when
      it's specified the `type: 'submenu'` can be omitted for the menu item
 
diff --git a/docs/api/menu.md b/docs/api/menu.md
index b14241181d10..abb4262479db 100644
--- a/docs/api/menu.md
+++ b/docs/api/menu.md
@@ -14,7 +14,7 @@ var MenuItem = require('menu-item');
 var menu = new Menu();
 menu.append(new MenuItem({ label: 'MenuItem1', click: function() { console.log('item 1 clicked'); } }));
 menu.append(new MenuItem({ type: 'separator' }));
-menu.append(new MenuItem({ label: 'MenuItem2', type: 'checkbox', clicked: true }));
+menu.append(new MenuItem({ label: 'MenuItem2', type: 'checkbox', checked: true }));
 
 window.addEventListener('contextmenu', function (e) {
   e.preventDefault();