diff --git a/roles/backup/tasks/postgres.yml b/roles/backup/tasks/postgres.yml
index 5e7436aa..77384f6c 100644
--- a/roles/backup/tasks/postgres.yml
+++ b/roles/backup/tasks/postgres.yml
@@ -24,7 +24,7 @@
 - block:
     - name: Delete pod to reload a resource configuration
       set_fact:
-        postgres_label_selector: "app.kubernetes.io/name={{ deployment_name }}-postgres"
+        postgres_label_selector: "app.kubernetes.io/instance=postgres-{{ deployment_name }}"
       when: postgres_label_selector is not defined
 
     - name: Get the postgres pod information