diff --git a/conf/nginx.conf b/conf/nginx.conf
index 5c2a375..6360e99 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -24,7 +24,7 @@ location ~ ^/(admin|graphql|thumbnailer) {
     proxy_http_version 1.1;
     proxy_set_header Upgrade $http_upgrade;
     proxy_set_header Connection "upgrade";
-    proxy_set_header Host $http_host;
+    proxy_set_header Host $host;
     proxy_set_header X-Forwarded-Host $http_host;
     proxy_set_header X-Real-IP $remote_addr;
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;