case controllers.EventUpdate:
		newNs := event.New.(*corev1.Namespace)
		oldNs := event.Old.(*corev1.Namespace)

		if getModeLabel(oldNs.Labels) != getModeLabel(newNs.Labels) {
			log.Debugf("Namespace %s updated", newNs.Name)
			s.enqueueNamespace(newNs)
		}
	}
	return nil
}

func getModeLabel(m map[string]string) string {
	if m == nil {
		return ""
	}
	return m[label.IoIstioDataplaneMode.Name]
}