diff --git a/source/_posts/openwrt-kernel-vermagic.md b/source/_posts/openwrt-kernel-vermagic.md
index 050a8b2..350ab7f 100644
--- a/source/_posts/openwrt-kernel-vermagic.md
+++ b/source/_posts/openwrt-kernel-vermagic.md
@@ -18,7 +18,7 @@ tags:
 
 * `OpenWrt` 源码根目录添加文件 `vermagic`
 ```shell
-cat 68143adfcb7fc62a239c4be112fe40de ./vermagic
+echo 68143adfcb7fc62a239c4be112fe40de ./vermagic
 ```
 
 * 修改 `kernel-defaults.mk`