diff --git a/conf/nginx.conf b/conf/nginx.conf
index ef38560..4d9b43f 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -4,7 +4,7 @@ location __PATH__/ {
   proxy_pass_header Server;
   proxy_pass http://127.0.0.1:__PORT__;
   proxy_redirect off;
-  proxy_set_header Host $http_host;
+  proxy_set_header Host $host;
   proxy_set_header X-Real-IP $remote_addr;
   proxy_set_header X-Scheme $scheme;
   proxy_set_header Upgrade $http_upgrade;