diff --git a/docker-rocky.sh b/docker-rocky.sh
index 9082bd2..69ee03d 100644
--- a/docker-rocky.sh
+++ b/docker-rocky.sh
@@ -19,6 +19,7 @@ ln -s /root/update.sh /etc/cron.weekly/update_docker
 
 touch docker-compose.yml
 
+dnf install -y 'dnf-command(config-manager)'
 # install docker
 dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo
 dnf install -y docker-ce docker-compose-plugin