diff --git a/docker-compose.yml b/docker-compose.yml
index 614a98b..c452632 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -19,7 +19,7 @@ services:
     volumes:
       - zammad-backup:/var/tmp/zammad
       - zammad-data:/opt/zammad:ro
-      - ./scripts/backup.sh:/usr/local/bin/backup.sh:ro
+      - ${APP_DATA}/scripts/backup.sh:/usr/local/bin/backup.sh:ro
 
   zammad-elasticsearch:
     image: bitnami/elasticsearch:8.5.1