diff --git a/docs/manage.en.md b/docs/manage.en.md
index 9df432e29e..57f38f5ce1 100644
--- a/docs/manage.en.md
+++ b/docs/manage.en.md
@@ -27,3 +27,9 @@ node cli/suspend @syuilo@misskey.xyz
 ``` shell
 node cli/clean-cached-remote-files
 ```
+
+## Clean up unused drive files
+``` shell
+node cli/clean-unused-drive-files
+```
+> We recommend that you announce a user that unused drive files will be deleted before performing this operation, as it may delete the user's important files.
diff --git a/docs/manage.ja.md b/docs/manage.ja.md
index 88d60f8a9f..2f0627e897 100644
--- a/docs/manage.ja.md
+++ b/docs/manage.ja.md
@@ -27,3 +27,9 @@ node cli/suspend @syuilo@misskey.xyz
 ``` shell
 node cli/clean-cached-remote-files
 ```
+
+## 使われていないドライブのファイルをクリーンアップする
+``` shell
+node cli/clean-unused-drive-files
+```
+> ユーザーの大事なファイルを削除する可能性があるので、この操作を実行する前にユーザーに告知することをお勧めします。