use the correct default value, fdo#78080

Change-Id: I8b01bf22e8e3b98ef013b947f617905d558d3554
Reviewed-on: https://gerrit.libreoffice.org/9849
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>