diff --git a/kubernetes/apps/observability/grafana/app/helmrelease.yaml b/kubernetes/apps/observability/grafana/app/helmrelease.yaml
index c6e2ac0a..323ec4e3 100644
--- a/kubernetes/apps/observability/grafana/app/helmrelease.yaml
+++ b/kubernetes/apps/observability/grafana/app/helmrelease.yaml
@@ -158,7 +158,8 @@ spec:
           # renovate: depName="smartctl_exporter"
           gnetId: 20204
           revision: 1
-          datasource: Prometheus
+          datasource:
+            - { name: DS_PROMETHEUS, value: Prometheus }
         spegel:
           # renovate: depName="Spegel"
           gnetId: 18089