diff --git a/man/systemd.unit.xml b/man/systemd.unit.xml
index 6b7022f35e9..be77e722907 100644
--- a/man/systemd.unit.xml
+++ b/man/systemd.unit.xml
@@ -502,15 +502,21 @@
Description=
- A free-form string describing the unit. This
- is intended for use in UIs to show descriptive information
- along with the unit name. The description should contain a
- name that means something to the end user. Apache2
- Web Server is a good example. Bad examples are
- high-performance light-weight HTTP server
- (too generic) or Apache2 (too specific and
- meaningless for people who do not know
- Apache).
+ A human readable name for the unit. This is used by
+ systemd (and other UIs) as the label for the unit, so this string should
+ identify the unit rather than describe it, despite the name. Apache2 Web
+ Server is a good example. Bad examples are high-performance light-weight
+ HTTP server (too generic) or Apache2 (too specific and
+ meaningless for people who do not know Apache). systemd will use this
+ string as a noun in status messages (Starting
+ description..., Started
+ description., Reached target
+ description., Failed to start
+ description.), so it should be capitalized, and should
+ not be a full sentence or a phrase with a continous verb. Bad examples include
+ exiting the container or updating the database once per
+ day..
+