как размаскировать media-gfx/fondu ?

прописал в /etc/portage/package.unmask
однако все равно пишет:

emerge media-gfx/fondu
Calculating dependencies
!!! All ebuilds that could satisfy "media-gfx/fondu" have been masked.
!!! One of the following masked packages is required to complete your request:
- media-gfx/fondu-20040925 (masked by: missing keyword)
- media-gfx/fondu-20040527 (masked by: missing keyword)