diff --git a/www/nginx/src/opnsense/service/templates/OPNsense/Nginx/location.conf b/www/nginx/src/opnsense/service/templates/OPNsense/Nginx/location.conf
index 33169a0c5..23232a2ab 100644
--- a/www/nginx/src/opnsense/service/templates/OPNsense/Nginx/location.conf
+++ b/www/nginx/src/opnsense/service/templates/OPNsense/Nginx/location.conf
@@ -82,6 +82,7 @@ location {{ location.matchtype }} {{ location.urlpattern }} {
 {% endif%}
 {% if location.upstream is defined and (location.php_enable is not defined or location.php_enable != '1') %}
 {% set upstream = helpers.getUUID(location.upstream) %}
+    proxy_set_header Host $host;
     proxy_pass http{% if upstream.tls_enable == '1' %}s{% endif %}://upstream{{ location.upstream.replace('-','') }};
 {%   if upstream.tls_enable == '1' %}
 {%     if upstream.tls_client_certificate is defined and upstream.tls_client_certificate != '' %}