diff --git a/testserver/docker_vpnserver/templates/config.yml b/testserver/docker_vpnserver/templates/config.yml
index 3b0aa47121fbcdd78391cdbe3a0857bf015b08aa..c4c8cf961aee1b5982432b21bc3a57103e4808ac 100644
--- a/testserver/docker_vpnserver/templates/config.yml
+++ b/testserver/docker_vpnserver/templates/config.yml
@@ -26,6 +26,7 @@ auth:
       - openid
       - profile
       - email
+      - groups
     # You can optionally restrict access to users with an email address
     # that matches an allowed domain.
     # If empty or omitted then all email domains will be allowed.