"image creation process?\n\nChoose <Wizard> to run the wizard," \
" <Expert> to run the snf-image-creator in expert mode or " \
"press ESC to quit the program." \
- % (image.ostype if image.ostype == image.distro else "%s (%s)" %
+ % (image.ostype if image.ostype == image.distro or
+ image.distro == "unknown" else "%s (%s)" %
(image.ostype, image.distro))
update_background_title(session)