diff --git a/conf/nginx.conf b/conf/nginx.conf
index 312a59d..9e32209 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -4,7 +4,7 @@ location ~ __PATH__/api/v[0-9]+/(users/)?websocket$ {
     proxy_set_header Upgrade $http_upgrade;
     proxy_set_header Connection "upgrade";
     client_max_body_size 50M;
-    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 $scheme;
@@ -18,7 +18,7 @@ location ~ __PATH__/api/v[0-9]+/(users/)?websocket$ {
 location __PATH__/ {
     client_max_body_size 50M;
     proxy_set_header Connection "";
-    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;