diff --git a/manifests/init.pp b/manifests/init.pp
index eae97b0..475fbb6 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -1,8 +1,23 @@
-# systemd-specific stuff for Software Heritage
+# == Class: systemd
+#
+# Manage systemd configurations
+#
+# === Examples
+#
+# include ::systemd
+#
+# === Authors
+#
+# Nicolas Dandrimont <nicolas@dandrimont.eu>
+#
+# === Copyright
+#
+# Copyright 2015 The Software Heritage developers
+#
 class systemd {
   exec {'systemd-daemon-reload':
     path        => '/sbin:/usr/sbin:/bin:/usr/bin',
     command     => 'systemctl daemon-reload',
     refreshonly => true,
   }
 }