diff --git a/volumes/conf.d/code.zinomedia.de.conf b/volumes/conf.d/code.zinomedia.de.conf
index 2239ed1..0198a19 100644
--- a/volumes/conf.d/code.zinomedia.de.conf
+++ b/volumes/conf.d/code.zinomedia.de.conf
@@ -49,8 +49,8 @@ server {
         
         resolver 127.0.0.11 valid=60s ipv6=off;
         resolver_timeout 10s;
-        set $upstream "http://vouch:9090/validate";
-        proxy_pass $upstream;
+        set $upstream vouch;
+        proxy_pass http://$upstream:9090/validate;
     }
 
     # if validate returns `401 not authorized` then forward the request to the error401block