diff --git a/conf/default.env b/conf/default.env
index 7cd8fb4..23d41b0 100644
--- a/conf/default.env
+++ b/conf/default.env
@@ -16,6 +16,9 @@ DB_USERNAME=__DB_NAME__
 DB_PASSWORD=__DB_PWD__
 DB_PORT=3306
 
+# https://invoiceninja.github.io/docs/self-host-installation/#final-setup-steps
+QUEUE_CONNECTION=database
+
 MAIL_MAILER=sendmail
 MAIL_HOST=localhost
 MAIL_PORT=25