diff --git a/docker-compose.override.yml b/docker-compose.override.yml
index e5a8e91..13da040 100644
--- a/docker-compose.override.yml
+++ b/docker-compose.override.yml
@@ -45,6 +45,10 @@ services:
 
   zammad-init:
     container_name: zammad-init
+    environment:
+      - POSTGRES_DB=${POSTGRES_DB}
+      - POSTGRES_USER=${POSTGRES_USER}
+      - POSTGRES_PASSWORD=${POSTGRES_PASS}
     env_file: stack.env
 
   zammad-memcached: