diff --git a/charts/fullstack-deployment/templates/cert-manager/cluster-issuer.yaml b/charts/fullstack-deployment/templates/cert-manager/cluster-issuer.yaml
index ccb52ec09..23e0ecbd1 100644
--- a/charts/fullstack-deployment/templates/cert-manager/cluster-issuer.yaml
+++ b/charts/fullstack-deployment/templates/cert-manager/cluster-issuer.yaml
@@ -2,7 +2,7 @@
 apiVersion: cert-manager.io/v1
 kind: ClusterIssuer
 metadata:
-  name: {{ index "hedera-explorer" "selfSignedCertClusterIssuer" }}
+  name: {{ index .Values "hedera-explorer" "selfSignedCertClusterIssuer" }}
   namespace: cert-manager
   annotations:
     helm.sh/hook: post-install