diff --git a/.examples/docker-compose/insecure/postgres/apache/compose.yaml b/.examples/docker-compose/insecure/postgres/apache/compose.yaml
index 120b9ec3..6302890b 100644
--- a/.examples/docker-compose/insecure/postgres/apache/compose.yaml
+++ b/.examples/docker-compose/insecure/postgres/apache/compose.yaml
@@ -27,7 +27,7 @@ services:
     volumes:
       - nextcloud:/var/www/html:z
     environment:
-      - MYSQL_HOST=db
+      - POSTGRES_HOST=db
       - REDIS_HOST=redis
     env_file:
       - db.env