diff --git a/cert-cluster-issuer/cluster-issuer.yaml b/cert-cluster-issuer/cluster-issuer.yaml
index 07ea0ae..c92f895 100644
--- a/cert-cluster-issuer/cluster-issuer.yaml
+++ b/cert-cluster-issuer/cluster-issuer.yaml
@@ -18,3 +18,4 @@ spec:
     - http01:
         ingress:
           serviceType: ClusterIP
+          class: "public"