diff --git a/app/javascript/mastodon/features/compose/components/announcements.js b/app/javascript/mastodon/features/compose/components/announcements.js
index cb4dba25a34ad0..311518d4aef844 100644
--- a/app/javascript/mastodon/features/compose/components/announcements.js
+++ b/app/javascript/mastodon/features/compose/components/announcements.js
@@ -5,6 +5,17 @@ import ImmutablePropTypes from 'react-immutable-proptypes';
 import IconButton from '../../../components/icon_button';
 
 const announcements = Immutable.fromJS([
+  {
+    id: 3,
+    body: 'friends.nico @ TOKYO 開催！',
+    links: [
+      {
+        href: 'https://goo.gl/forms/LLi2wmHuzr4NJiTG3',
+        body: '参加登録はこちら',
+      },
+    ],
+    nicotta: false,
+  },
   {
     id: 1,
     body: 'friends.nico のアプリができました!',