diff --git a/app-of-apps/headscale.yaml b/app-of-apps/headscale.yaml
index e2e08df..6421d89 100644
--- a/app-of-apps/headscale.yaml
+++ b/app-of-apps/headscale.yaml
@@ -24,6 +24,8 @@ spec:
           value: 'dnsimple-cert-manager-webhook-cert-manager-webhook-dnsimple-production'
         - name: headscale.config.dns.base_domain
           value: 'martyn.berlin'
+        - name: headscale.config.server_url
+          value: 'https://headscale.martyn.berlin'
         - name: headscale.certmanager.dnsNames[0]
           value: headscale.martyn.berlin
       valuesObject: