diff --git a/apps/overlays/au-syd1/cert-manager/values.yaml b/apps/overlays/au-syd1/cert-manager/values.yaml
index 3e94eb4..9c30ac3 100644
--- a/apps/overlays/au-syd1/cert-manager/values.yaml
+++ b/apps/overlays/au-syd1/cert-manager/values.yaml
@@ -5,7 +5,7 @@ config:
   apiVersion: controller.config.cert-manager.io/v1alpha1
   kind: ControllerConfiguration
   enableGatewayAPI: true
-  acmeDNS01:
+  acmeDNS01Config:
     recursiveNameservers:
       - "8.8.8.8:53"
       - "1.1.1.1:53"