diff --git a/controllers/controller_filer.go b/controllers/controller_filer.go
index 16770e6..5a7af7c 100644
--- a/controllers/controller_filer.go
+++ b/controllers/controller_filer.go
@@ -100,6 +100,7 @@ func (r *SeaweedReconciler) ensureFilerConfigMap(seaweedCR *seaweedv1.Seaweed) (
 
 func labelsForFiler(name string) map[string]string {
 	return map[string]string{
+		label.ManagedByLabelKey: "seaweedfs-operator",
 		label.NameLabelKey:      "seaweedfs",
 		label.ComponentLabelKey: "filer",
 		label.InstanceLabelKey:  name,
diff --git a/controllers/controller_master.go b/controllers/controller_master.go
index 00cb756..5de8ced 100644
--- a/controllers/controller_master.go
+++ b/controllers/controller_master.go
@@ -119,6 +119,7 @@ func (r *SeaweedReconciler) ensureMasterPeerService(seaweedCR *seaweedv1.Seaweed
 
 func labelsForMaster(name string) map[string]string {
 	return map[string]string{
+		label.ManagedByLabelKey: "seaweedfs-operator",
 		label.NameLabelKey:      "seaweedfs",
 		label.ComponentLabelKey: "master",
 		label.InstanceLabelKey:  name,
diff --git a/controllers/controller_volume.go b/controllers/controller_volume.go
index 03b448b..93326fd 100644
--- a/controllers/controller_volume.go
+++ b/controllers/controller_volume.go
@@ -82,6 +82,7 @@ func (r *SeaweedReconciler) ensureVolumeServerService(seaweedCR *seaweedv1.Seawe
 
 func labelsForVolumeServer(name string) map[string]string {
 	return map[string]string{
+		label.ManagedByLabelKey: "seaweedfs-operator",
 		label.NameLabelKey:      "seaweedfs",
 		label.ComponentLabelKey: "volume",
 		label.InstanceLabelKey:  name,