diff --git a/classes/cluster/os-ha-contrail-40/init.yml b/classes/cluster/os-ha-contrail-40/init.yml
index 707e8d6..5ad24b3 100644
--- a/classes/cluster/os-ha-contrail-40/init.yml
+++ b/classes/cluster/os-ha-contrail-40/init.yml
@@ -1,4 +1,5 @@
 classes:
+- system.defaults
 - system.linux.network.dynamic_hosts
 - system.linux.system.repo.mcp.extra
 - system.linux.system.single