diff --git a/everything-app/oauth2proxy.yaml b/everything-app/oauth2proxy.yaml
index 0adf15f..1d434d3 100644
--- a/everything-app/oauth2proxy.yaml
+++ b/everything-app/oauth2proxy.yaml
@@ -36,6 +36,7 @@ spec:
         - "--email-domain=*"
         - "--upstream=static://200"
         - "--http-address=0.0.0.0:4180"
+        - "--whitelist-domain=.martyn.berlin"
     repoURL: https://oauth2-proxy.github.io/manifests
     targetRevision: 7.12.18
   syncPolicy: