diff --git a/operator/controllers/patroni_core_controller.go b/operator/controllers/patroni_core_controller.go
index 4e678830..fd141d76 100644
--- a/operator/controllers/patroni_core_controller.go
+++ b/operator/controllers/patroni_core_controller.go
@@ -445,6 +445,9 @@ func (pr *PatroniCoreReconciler) AddExcludeLabelToCm(c client.Client, cmName str
 	}
 	if foundCm.Labels == nil {
 		foundCm.Labels = make(map[string]string)
+	}
+
+	if foundCm.Labels["velero.io/exclude-from-backup"] != "true" {
 		foundCm.Labels["velero.io/exclude-from-backup"] = "true"
 		err = c.Update(context.TODO(), foundCm)
 		if err != nil {
diff --git a/operator/controllers/postgresservice_controller.go b/operator/controllers/postgresservice_controller.go
index a633a6cf..53014958 100644
--- a/operator/controllers/postgresservice_controller.go
+++ b/operator/controllers/postgresservice_controller.go
@@ -598,6 +598,9 @@ func (r *PostgresServiceReconciler) AddExcludeLabelToCm(c client.Client, cmName
 	}
 	if foundCm.Labels == nil {
 		foundCm.Labels = make(map[string]string)
+	}
+
+	if foundCm.Labels["velero.io/exclude-from-backup"] != "true" {
 		foundCm.Labels["velero.io/exclude-from-backup"] = "true"
 		err = c.Update(context.TODO(), foundCm)
 		if err != nil {