diff --git a/pkg/dataplane/baremetal.go b/pkg/dataplane/baremetal.go
index acf45ff2e..b9ffe4125 100644
--- a/pkg/dataplane/baremetal.go
+++ b/pkg/dataplane/baremetal.go
@@ -89,6 +89,7 @@ func DeployBaremetalSet(
 						return fmt.Errorf("%s gateway is missing", dataplanev1.CtlPlaneNetwork)
 					}
 					baremetalSet.Spec.CtlplaneGateway = *res.Gateway
+					baremetalSet.Spec.CtlplaneNetmask = string(ipNet.Mask)
 					baremetalSet.Spec.BootstrapDNS = dnsAddresses
 					baremetalSet.Spec.DNSSearchDomains = []string{res.DNSDomain}
 				}