diff --git a/docker-compose.yml b/docker-compose.yml
index 4d4e32c912f6e28bc41eb1962a59467ac65a12f5..a4d016415d3c1ee805573bbdd802078c6c92077c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -30,6 +30,7 @@ services:
         remote_port=9000
         remote_enable=1
         remote_host=10.111.0.1
+        idekey=fid
 
   httpd:
     image: ubleipzig/vufind-httpd:2.4-2