diff --git a/cert-cluster-issuer/cluster-issuer.yaml b/cert-cluster-issuer/cluster-issuer.yaml
index ce4d912..07ea0ae 100644
--- a/cert-cluster-issuer/cluster-issuer.yaml
+++ b/cert-cluster-issuer/cluster-issuer.yaml
@@ -17,3 +17,4 @@ spec:
     solvers:
     - http01:
         ingress:
+          serviceType: ClusterIP