diff --git a/pkg/daemon/update.go b/pkg/daemon/update.go
index 7546995f6f..6e5b8a2131 100644
--- a/pkg/daemon/update.go
+++ b/pkg/daemon/update.go
@@ -837,6 +837,25 @@ func (dn *Daemon) updateOnClusterBuild(oldConfig, newConfig *mcfgv1.MachineConfi
 	oldConfigName := oldConfig.GetName()
 	newConfigName := newConfig.GetName()
 
+	// Add the desired config version to the MCN
+	// 	get MCP associated with node. Note that in 4.18 and prior only default worker
+	// 	& master node roles/MCPs are supported in MCN, thus the hard-coded label checks
+	//  for determining MCP association.
+	pool := ""
+	var ok bool
+	if dn.node != nil {
+		if _, ok = dn.node.Labels["node-role.kubernetes.io/master"]; ok {
+			pool = "master"
+		} else if _, ok = dn.node.Labels["node-role.kubernetes.io/worker"]; ok {
+			pool = "worker"
+		}
+	}
+	//  update the MCN spec
+	err := upgrademonitor.GenerateAndApplyMachineConfigNodeSpec(dn.featureGatesAccessor, pool, dn.node, dn.mcfgClient)
+	if err != nil {
+		return fmt.Errorf("error updating MCN spec for node %s: %w", dn.node.Name, err)
+	}
+
 	oldIgnConfig, err := ctrlcommon.ParseAndConvertConfig(oldConfig.Spec.Config.Raw)
 	if err != nil {
 		return fmt.Errorf("parsing old Ignition config failed: %w", err)