diff --git a/classes/cluster/mcp-day01/infra/init.yml b/classes/cluster/mcp-day01/infra/init.yml
index 41700c1..5cc907d 100644
--- a/classes/cluster/mcp-day01/infra/init.yml
+++ b/classes/cluster/mcp-day01/infra/init.yml
@@ -1,4 +1,5 @@
 classes:
+- system.defaults
 - system.linux.system.single.debian
 #- system.openssh.server.team.cicd
 parameters: