diff --git a/README.md b/README.md
index c8008d8..d616099 100644
--- a/README.md
+++ b/README.md
@@ -265,6 +265,7 @@ Configure frps same as above.
   plugin_crt_path = ./server.crt
   plugin_key_path = ./server.key
   plugin_host_header_rewrite = 127.0.0.1
+  plugin_header_X-From-Where = frp
   ```
 
 2. Visit `https://test.yourdomain.com`.
diff --git a/README_zh.md b/README_zh.md
index a918930..ccb33b3 100644
--- a/README_zh.md
+++ b/README_zh.md
@@ -270,6 +270,7 @@ frps 的部署步骤同上。
   plugin_crt_path = ./server.crt
   plugin_key_path = ./server.key
   plugin_host_header_rewrite = 127.0.0.1
+  plugin_header_X-From-Where = frp
   ```
 
 2. 通过浏览器访问 `https://test.yourdomain.com` 即可。