diff --git a/docs/reference/usage.rst b/docs/reference/usage.rst
index a76f864..cd3046a 100644
--- a/docs/reference/usage.rst
+++ b/docs/reference/usage.rst
@@ -36,5 +36,7 @@ Bundle contains ``ScheduledVisibilityUpdateCommand``
 that searches through configured content and, if necessary, updates its visibility.
 Command has a ``limit`` option that represents number of content objects to process in a single iteration.
 By default it is set to 1024.
+The command also has a ``since`` option that limits processing to content items modified since the given number of days.
+By default it is not set, which means all items will be processed.
 Command can be executed with: ``bin/console ngscheduledvisibility:update``.
 For this mechanism to work how it was intended, this command should be set as cron job.