diff --git a/etc/nginx/snippets/proxy.conf b/etc/nginx/snippets/proxy.conf
index 465dd50..3f287dc 100644
--- a/etc/nginx/snippets/proxy.conf
+++ b/etc/nginx/snippets/proxy.conf
@@ -16,7 +16,7 @@ proxy_set_header X-Original-URL $scheme://$http_host$request_uri;
 proxy_set_header X-Original-URI $request_uri;
 
 # Forward host header
-proxy_set_header Host $host;
+proxy_set_header Host $http_host;
 
 # Upgrade connection
 proxy_set_header   Upgrade $http_upgrade;