diff --git a/README.md b/README.md
index 0695f68..ba14738 100644
--- a/README.md
+++ b/README.md
@@ -154,7 +154,7 @@ location / {
   proxy_set_header X-Real-IP $remote_addr;
   proxy_set_header REMOTE-HOST $remote_addr;
   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-  proxy_set_header Host $http_host;
+  proxy_set_header Host $host;
   proxy_redirect off;
 }
 ```