diff --git a/examples/reverse_proxy/Caddyfile b/examples/reverse_proxy/Caddyfile
index 28792912..9d41df76 100644
--- a/examples/reverse_proxy/Caddyfile
+++ b/examples/reverse_proxy/Caddyfile
@@ -1,6 +1,7 @@
 hydro.ac {
   reverse_proxy http://localhost:8888 {
     header_up x-real-ip {remote_host}
-    header_up x-real-host {hostport}
+    # caddy now add x-forwarded-host automatically.
+    # header_up x-forwarded-host {hostport}
   }
 }
diff --git a/examples/reverse_proxy/nginx.conf b/examples/reverse_proxy/nginx.conf
index de40368b..42ae3e61 100644
--- a/examples/reverse_proxy/nginx.conf
+++ b/examples/reverse_proxy/nginx.conf
@@ -12,7 +12,7 @@ server {
     proxy_http_version 1.1;
     proxy_set_header Upgrade $http_upgrade;
     proxy_set_header Connection $connection_upgrade;
-    proxy_set_header X-Real-Host $host;
+    proxy_set_header X-Forwarded-Host $host;
     proxy_set_header X-Forwarded-For $remote_addr;
   }
 }
\ No newline at end of file