diff --git a/clusters/cl01tl/platform/authentik/templates/gateway.yaml b/clusters/cl01tl/platform/authentik/templates/gateway.yaml
index 74042f7b4..b8cfa117f 100644
--- a/clusters/cl01tl/platform/authentik/templates/gateway.yaml
+++ b/clusters/cl01tl/platform/authentik/templates/gateway.yaml
@@ -9,6 +9,8 @@ metadata:
     app.kubernetes.io/version: {{ .Chart.AppVersion }}
     app.kubernetes.io/component: network
     app.kubernetes.io/part-of: {{ .Release.Name }}
+  annotations:
+    cert-manager.io/issuer: letsencrypt-issuer
 spec:
   gatewayClassName: cilium
   listeners: