diff --git a/charts/base-cluster/templates/monitoring/kube-prometheus-stack/_grafana-config.yaml b/charts/base-cluster/templates/monitoring/kube-prometheus-stack/_grafana-config.yaml
index d154734517..010c37b4f5 100644
--- a/charts/base-cluster/templates/monitoring/kube-prometheus-stack/_grafana-config.yaml
+++ b/charts/base-cluster/templates/monitoring/kube-prometheus-stack/_grafana-config.yaml
@@ -113,7 +113,7 @@ dashboards:
     #  revision: 7
     #  datasource: Prometheus
     kubernetes-cluster-monitoring-via-prometheus: &dashboard
-      datasource: Prometheus
+      datasource: prometheus
       gnetId: 315
       revision: 3
     namespace-view: