diff --git a/nginx/files/proxy.conf b/nginx/files/proxy.conf
index 620f0d8..2d2f826 100644
--- a/nginx/files/proxy.conf
+++ b/nginx/files/proxy.conf
@@ -75,6 +75,7 @@
       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;
+      proxy_set_header X-Forwarded-Port $server_port;
       {%- if site.get('ssl', {'enabled': False}).get('enabled', False) %}
       add_header Front-End-Https on;
       {%- endif %}