diff --git a/postgresql/templates/monitoring/prometheus/exporter-deployment.yaml b/postgresql/templates/monitoring/prometheus/exporter-deployment.yaml
index 711032275..506edf7a7 100644
--- a/postgresql/templates/monitoring/prometheus/exporter-deployment.yaml
+++ b/postgresql/templates/monitoring/prometheus/exporter-deployment.yaml
@@ -26,6 +26,9 @@ metadata:
 spec:
   replicas: {{ .Values.pod.replicas.prometheus_postgresql_exporter }}
 {{ tuple $envAll | include "helm-toolkit.snippets.kubernetes_upgrades_deployment" | indent 2 }}
+  selector:
+    matchLabels:
+{{ tuple $envAll "prometheus_postgresql_exporter" "exporter" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 6 }}
   template:
     metadata:
       labels: