diff --git a/values/cilium/cilium-manifests/gateway.yaml b/values/cilium/cilium-manifests/gateway.yaml
index dd378c6d..cdedc678 100644
--- a/values/cilium/cilium-manifests/gateway.yaml
+++ b/values/cilium/cilium-manifests/gateway.yaml
@@ -33,7 +33,8 @@ spec:
       port: 443
       tls:
         certificateRefs:
-          - kind: Secret
+          - group: ''
+            kind: Secret
             name: wildcard-oceanbox-io
       allowedRoutes:
         namespaces: