diff --git a/federation/apis/core/v1/defaults.go b/federation/apis/core/v1/defaults.go
index 8722e5664e5..4101dd5e77a 100644
--- a/federation/apis/core/v1/defaults.go
+++ b/federation/apis/core/v1/defaults.go
@@ -22,6 +22,7 @@ import (
 )
 
 func addDefaultingFuncs(scheme *runtime.Scheme) error {
+	v1.RegisterDefaults(scheme)
 	return scheme.AddDefaultingFuncs(
 		v1.SetDefaults_Secret,
 		v1.SetDefaults_ServiceSpec,