diff --git a/man/systemd.exec.xml b/man/systemd.exec.xml
index 8701005e6b..0d3645f19f 100644
--- a/man/systemd.exec.xml
+++ b/man/systemd.exec.xml
@@ -2436,6 +2436,20 @@ StandardInputData=SWNrIHNpdHplIGRhIHVuJyBlc3NlIEtsb3BzLAp1ZmYgZWVtYWwga2xvcHAncy
information.
+
+ $RUNTIME_DIRECTORY
+ $STATE_DIRECTORY
+ $CACHE_DIRECTORY
+ $LOGS_DIRECTORY
+ $CONFIGURATION_DIRECTORY
+
+ Contains and absolute paths to the directories defined with
+ RuntimeDirectory=, StateDirectory=,
+ CacheDirectory=, LogsDirectory=, and
+ ConfigurationDirectory= when those settings are used.
+
+
+
$MAINPID