it has been fixed in git: http://git.gnome.org/browse/gnome-control-center/commit/?id=c48536c10262c39f9a3cb710a64b09f793cd523d
it has been fixed in git: http:// git.gnome. org/browse/ gnome-control- center/ commit/ ?id=c48536c1026 2c39f9a3cb710a6 4b09f793cd523d