diff --git a/services/manifests/mailserver.pp b/services/manifests/mailserver.pp
index 2ed1f54add642aff9410d20b0b74b5b91d19f881..061a9df03087f3fc70353bd6dbeb02270ddd2188 100644
--- a/services/manifests/mailserver.pp
+++ b/services/manifests/mailserver.pp
@@ -357,7 +357,7 @@ class services::mailserver::mailman {
     '/etc/mailman3/mailman-hyperkitty.cfg':
       ensure => file,
       owner  => 'root',
-      group  => 'lists',
+      group  => 'list',
       mode   => '0440',
       content => template("${::pupfiles}/mailserver/mailman/mailman-hyperkitty.cfg.erb"),
       notify => Service['mailman3'];