diff --git a/volumes/conf.d/code.zinomedia.de.conf b/volumes/conf.d/code.zinomedia.de.conf
index 9ce2923..520094e 100644
--- a/volumes/conf.d/code.zinomedia.de.conf
+++ b/volumes/conf.d/code.zinomedia.de.conf
@@ -48,7 +48,7 @@ server {
         auth_request_set $auth_resp_failcount $upstream_http_x_vouch_failcount;
         
         resolver 127.0.0.11;
-        set $upstream "http://vouch:9090/validate";
+        set $upstream http://vouch:9090/validate;
         proxy_pass $upstream;
     }