diff --git a/volumes/conf.d/code.zinomedia.de.conf b/volumes/conf.d/code.zinomedia.de.conf
index a8e5632..ad28968 100644
--- a/volumes/conf.d/code.zinomedia.de.conf
+++ b/volumes/conf.d/code.zinomedia.de.conf
@@ -1,5 +1,6 @@
 upstream vouch_proxy {
-    server vouch:9090;
+    set $upstream vouch:9090;
+    server $upstream;
 }
 
 server {