diff --git a/README.md b/README.md
index d65a5b7..3fd4160 100644
--- a/README.md
+++ b/README.md
@@ -181,7 +181,7 @@ brew install yt-dlp
 
 ```bash
 # Download images/videos from Xiaohongshu note
-opencli xiaohongshu download --note-id abc123 --output ./xhs
+opencli xiaohongshu download --note_id abc123 --output ./xhs
 
 # Download Bilibili video (requires yt-dlp)
 opencli bilibili download --bvid BV1xxx --output ./bilibili
diff --git a/README.zh-CN.md b/README.zh-CN.md
index 0708e16..01c9ce2 100644
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -182,7 +182,7 @@ brew install yt-dlp
 
 ```bash
 # 下载小红书笔记中的图片/视频
-opencli xiaohongshu download --note-id abc123 --output ./xhs
+opencli xiaohongshu download --note_id abc123 --output ./xhs
 
 # 下载B站视频（需要 yt-dlp）
 opencli bilibili download --bvid BV1xxx --output ./bilibili
diff --git a/src/clis/xiaohongshu/download.ts b/src/clis/xiaohongshu/download.ts
index 81f5226..890010c 100644
--- a/src/clis/xiaohongshu/download.ts
+++ b/src/clis/xiaohongshu/download.ts
@@ -2,7 +2,7 @@
  * Xiaohongshu download — download images and videos from a note.
  *
  * Usage:
- *   opencli xiaohongshu download --note-id abc123 --output ./xhs
+ *   opencli xiaohongshu download --note_id abc123 --output ./xhs
  */
 
 import * as fs from 'node:fs';