diff --git a/apps/base/vault/gateway.yaml b/apps/base/vault/gateway.yaml
index 4c24ccc..8490020 100644
--- a/apps/base/vault/gateway.yaml
+++ b/apps/base/vault/gateway.yaml
@@ -12,7 +12,7 @@ metadata:
     cert-manager.io/cluster-issuer: vault-issuer
     cert-manager.io/common-name: vault.k8s.syd1.au.unkin.net
     cert-manager.io/private-key-size: "4096"
-    cert-manager.io/subject-alternative-names: vault.service.consul,vault.query.consul
+    cert-manager.io/alt-names: vault.service.consul,vault.query.consul
     external-dns.alpha.kubernetes.io/hostname: vault.k8s.syd1.au.unkin.net
     external-dns.alpha.kubernetes.io/target: 198.18.200.4
 spec: