diff --git a/docker-compose.yaml b/docker-compose.yaml
index 3b42d80..d0fc76a 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -181,6 +181,7 @@ services:
       - GITEA__database__NAME=gitea
       - GITEA__database__USER=gitea
       - GITEA__database__PASSWD=${GITEA_DB_PW}
+      - GITEA__repository__DEFAULT_BRANCH=master
       - GITEA__mailer__ENABLED=true
       - GITEA__mailer__FROM=${MAIL_ADDR}
       - GITEA__mailer__PROTOCOL=smtp+starttls