diff --git a/kdumpctl.8 b/kdumpctl.8
index 33c1115..29a6119 100644
--- a/kdumpctl.8
+++ b/kdumpctl.8
@@ -62,6 +62,10 @@ grubby's kernel-path=ALL and kernel-path=DEFAULT. ppc64le supports FADump and
 supports an additional [--fadump=[on|off|nocma]] parameter to toggle FADump
 on/off.
 
+If the optional parameter [--reboot] is provided the system will automatically
+reboot for changes to take effect. If no changes were made to the kernel
+command line the reboot is omitted.
+
 Note: The memory requirements for kdump varies heavily depending on the
 used hardware and system configuration. Thus the recommended
 crashkernel might not work for your specific setup. Please test if