diff --git a/core/admin/start.sh b/core/admin/start.sh
index 2a899bb7..4f60e39d 100755
--- a/core/admin/start.sh
+++ b/core/admin/start.sh
@@ -2,4 +2,4 @@
 
 python manage.py advertise
 python manage.py db upgrade
-gunicorn -w 4 -b 0.0.0.0:80 --access-logfile - --error-logfile - --preload mailu:app
+gunicorn -w 4 -b 0.0.0.0:80 -b [::]:80 --access-logfile - --error-logfile - --preload mailu:app