diff --git a/api/v1beta1/index/cluster.go b/api/v1beta1/index/cluster.go
index b48595e7d3cc..417abbcb9153 100644
--- a/api/v1beta1/index/cluster.go
+++ b/api/v1beta1/index/cluster.go
@@ -29,6 +29,8 @@ import (
 
 const (
 	// ClusterClassNameField is used by the Cluster controller to index Clusters by ClusterClass name.
+	//
+	// Deprecated: This constant will be removed in an upcoming release, please use ClusterClassRefPath instead.
 	ClusterClassNameField = "spec.topology.class"
 
 	// ClusterClassRefPath is used by the Cluster controller to index Clusters by ClusterClass name and namespace.
@@ -70,6 +72,8 @@ func ClusterClassRef(cc *clusterv1.ClusterClass) string {
 
 // ByClusterClassName adds the cluster class name  index to the
 // managers cache.
+//
+// Deprecated: This func will be removed in an upcoming release, please use ByClusterClassRef instead.
 func ByClusterClassName(ctx context.Context, mgr ctrl.Manager) error {
 	if err := mgr.GetCache().IndexField(ctx, &clusterv1.Cluster{},
 		ClusterClassNameField,
@@ -81,6 +85,8 @@ func ByClusterClassName(ctx context.Context, mgr ctrl.Manager) error {
 }
 
 // ClusterByClusterClassClassName contains the logic to index Clusters by ClusterClass name.
+//
+// Deprecated: This func will be removed in an upcoming release, please use ClusterByClusterClassRef instead.
 func ClusterByClusterClassClassName(o client.Object) []string {
 	cluster, ok := o.(*clusterv1.Cluster)
 	if !ok {