diff --git a/packages/client/src/os.ts b/packages/client/src/os.ts
index eada01bf2..06a8ff99d 100644
--- a/packages/client/src/os.ts
+++ b/packages/client/src/os.ts
@@ -1,6 +1,6 @@
 // TODO: なんでもかんでもos.tsに突っ込むのやめたいのでよしなに分割する
 
-import { Component, markRaw, Ref, ref } from 'vue';
+import { Component, markRaw, Ref, ref, defineAsyncComponent } from 'vue';
 import { EventEmitter } from 'eventemitter3';
 import insertTextAtCursor from 'insert-text-at-cursor';
 import * as Misskey from 'misskey-js';