diff --git a/clusters/cl01tl/helm/cilium/values.yaml b/clusters/cl01tl/helm/cilium/values.yaml
index dd2a73604..667feb0f5 100644
--- a/clusters/cl01tl/helm/cilium/values.yaml
+++ b/clusters/cl01tl/helm/cilium/values.yaml
@@ -55,6 +55,13 @@ cilium:
     metrics:
       serviceMonitor:
         enabled: true
+    tls:
+      auto:
+        method: certmanager
+        certManagerIssuerRef:
+          group: cert-manager.io
+          kind: ClusterIssuer
+          name: ca-issuer
     relay:
       enabled: true
       metrics: