diff --git a/man/systemd.offline-updates.xml b/man/systemd.offline-updates.xml
index c11004c882..113d74a220 100644
--- a/man/systemd.offline-updates.xml
+++ b/man/systemd.offline-updates.xml
@@ -139,6 +139,17 @@
After=system-update-pre.target
and explicitly pull in any other services it requires.
+
+
+ It may be desirable to always run an auxiliary unit when booting
+ into offline-updates mode, which itself does not install updates. To
+ do this create a .service file with
+ Wants=system-update-pre.target and
+ Before=system-update-pre.target and add a symlink
+ to that file under
+ /usr/lib/systemd/system-update.target.wants
+ .
+