diff --git a/README.md b/README.md
index 89ad159..b700c55 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,7 @@ services:
   db:
     image: mariadb:latest
     environment:
+      - MARIADB_DATABASE=rar_index
       - MARIADB_USER=rar_index_app
       - MARIADB_PASSWORD=password
       - MYSQL_ROOT_PASSWORD=secretadminpassword