diff --git a/Worker.md b/Worker.md
index e579eac..bc4d8a6 100644
--- a/Worker.md
+++ b/Worker.md
@@ -181,6 +181,7 @@ Worker should have some default configuration which is applied to worker itself
 Mandatory items are bold, optional italic.
 
 - **worker-id** -- unique identification of worker at one server. This id is used by _isolate_ sanbox on linux systems, so make sure to meet isolate's requirements (default is number from 1 to 999).
+- _worker-description_ -- human readable description of this worker
 - **broker-uri** -- URI of the broker (hostname, IP address, including port, ...)
 - _broker-ping-interval_ -- time interval how often to send ping messages to broker. Used units are milliseconds.
 - _max-broker-liveness_ -- specifies how many pings in a row can broker miss without making the worker dead.