diff --git a/conf/nginx.conf b/conf/nginx.conf
index 2a4dc5a..e19f23b 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -4,7 +4,7 @@ location / {
   proxy_http_version 1.1;
   proxy_set_header Upgrade $http_upgrade;
   proxy_set_header Connection "upgrade";
-  proxy_set_header Host $http_host;
+  proxy_set_header Host $host;
   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
 
   proxy_pass http://127.0.0.1:__PORT__;