diff --git a/conf/nginx.conf b/conf/nginx.conf
index d699684..b340a89 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -11,7 +11,7 @@ location ~ ^(/ws|/api|/images|/Loader.svg|/apple-icon-180x180.png|/favicon-96x96
 
   # forward headers
   proxy_buffering off;
-  proxy_set_header Host $http_host;
+  proxy_set_header Host $host;
   proxy_set_header X-Real-IP $remote_addr;
   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
   proxy_set_header X-Forwarded-Proto $scheme;
@@ -29,7 +29,7 @@ location ~ / {
 
   # forward headers
   proxy_buffering off;
-  proxy_set_header Host $http_host;
+  proxy_set_header Host $host;
   proxy_set_header X-Real-IP $remote_addr;
   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
   proxy_set_header X-Forwarded-Proto $scheme;