diff --git a/.env b/.env
index 0c3059a..b28e655 100644
--- a/.env
+++ b/.env
@@ -2,6 +2,8 @@ APP_PORT=9001
 APP_NAME=erpnext
 DB_MARIA_PASSWORD=LFVKy9ra9Njy2E
 DB_MARIA_PORT=3306
+# ERPNext12 is mariadb
+APP_DB_PARAM=mariadb
 # use Internet IP if no domain
 APP_URL=erpnext.example.com
 APP_USER=Administrator