diff --git a/man/dracut.cmdline.7.asc b/man/dracut.cmdline.7.asc
index 23f8b8d844..dbe8e800d0 100644
--- a/man/dracut.cmdline.7.asc
+++ b/man/dracut.cmdline.7.asc
@@ -453,6 +453,11 @@ it, e.g. `rd.luks.name=cccc=mykeys`, otherwise it gets closed
 when not needed anymore.
 ===============================
 
+**rd.luks.key.tout=0**::
+    specify how many times dracut will try to read the keys specified in in
+    rd.luk.key. This gives a chance to the removable device containing the key
+    to initialise.
+
 MD RAID
 ~~~~~~~
 **rd.md=0**::