diff --git a/volumes/conf.d/etherpad.zinomedia.de.conf b/volumes/conf.d/etherpad.zinomedia.de.conf
index 601701c..60fe81d 100644
--- a/volumes/conf.d/etherpad.zinomedia.de.conf
+++ b/volumes/conf.d/etherpad.zinomedia.de.conf
@@ -23,7 +23,7 @@ server {
 
     location / {
         resolver 127.0.0.11;
-        set $upstream "etherpad:9001";
+        set $upstream "http://etherpad:9001";
         proxy_pass $upstream;
 
         proxy_buffering off;