diff --git a/examples/nginx.conf b/examples/nginx.conf
index 834a536..012b40f 100644
--- a/examples/nginx.conf
+++ b/examples/nginx.conf
@@ -57,7 +57,7 @@ server {
         proxy_http_version       1.1;
 
         # Add X-Forwarded-* headers
-        proxy_set_header X-Forwarded-Host $hostname;
+        proxy_set_header X-Forwarded-Host $host;
         proxy_set_header X-Forwarded-Proto $scheme;
 
         proxy_set_header         Upgrade $http_upgrade;