--- a/screencast.rst	Thu Oct 23 17:32:46 2014 +0300
+++ b/screencast.rst	Fri Oct 24 09:53:34 2014 +0300
@@ -73,7 +73,7 @@
 ================
 ::
 
-  $ recordmydesktop --windowid $(xwininfo | awk '/Window id:/ {print $4}')
+  $ recordmydesktop --no-sound --windowid $(xwininfo | awk '/Window id:/ {print $4}')
 
 Screenshort movies.
 ===================