diff --git a/resources/chaosknoten/tickets/docker_compose/compose.yaml.j2 b/resources/chaosknoten/tickets/docker_compose/compose.yaml.j2
index 2bf732b..c2fcf7d 100644
--- a/resources/chaosknoten/tickets/docker_compose/compose.yaml.j2
+++ b/resources/chaosknoten/tickets/docker_compose/compose.yaml.j2
@@ -7,7 +7,7 @@ services:
       - "POSTGRES_PASSWORD={{ secret__pretix_db_password }}"
       - "POSTGRES_DB=pretix"
     volumes:
-      - database:/var/lib/postgresql
+      - database:/var/lib/postgresql/data
     networks:
       backend:
     restart: unless-stopped