diff --git a/nginx.conf.sigil b/nginx.conf.sigil
index 9c3fedc..2a299aa 100644
--- a/nginx.conf.sigil
+++ b/nginx.conf.sigil
@@ -47,7 +47,7 @@ server {
     # Default location block
 
     location / {
-        proxy_pass http://172.17.0.28:8080;
+        proxy_pass http://{{ $.APP }}-{{ $upstream_port }};
       add_header 'Cache-Control' 'no-cache';
       add_header 'Content-Type' 'text/event-stream';
       add_header 'Connection' 'keep-alive';