diff --git a/examples/aks/stack.tf b/examples/aks/stack.tf
index 5c05a02574..9903e862a3 100644
--- a/examples/aks/stack.tf
+++ b/examples/aks/stack.tf
@@ -100,7 +100,7 @@ module "thanos" {
   cluster_name     = local.cluster_name
   base_domain      = azurerm_dns_zone.this.name
   argocd_namespace = module.argocd.argocd_namespace
-  cluster_issuer   = "letsencrypt-staging"
+  cluster_issuer   = local.cluster_issuer
 
   metrics_storage = {
     container           = azurerm_storage_container.metrics.name