diff --git a/cert-cluster-issuer/cluster-issuer.yaml b/cert-cluster-issuer/cluster-issuer.yaml
index 8b2776d..e7ab702 100644
--- a/cert-cluster-issuer/cluster-issuer.yaml
+++ b/cert-cluster-issuer/cluster-issuer.yaml
@@ -17,4 +17,5 @@ spec:
     solvers:
     - http01:
         ingress:
+          ingressClassName: nginx
           class: public