diff --git a/argocd/prometheus/monitoring/argocd_values.yaml b/argocd/prometheus/monitoring/argocd_values.yaml
index cfef983..76b826c 100644
--- a/argocd/prometheus/monitoring/argocd_values.yaml
+++ b/argocd/prometheus/monitoring/argocd_values.yaml
@@ -15,7 +15,7 @@ kube-prometheus-stack:
     enabled: true
   grafana:
     enabled: true
-    envFromSecret:
+    envFromSecret: prometheus
     grafana.ini:
       server:
         root_url: https://grafana.k8s.monitoring.2martens.de