diff --git a/dev-ruby/ox/ox-2.2.1.ebuild b/dev-ruby/ox/ox-2.2.1.ebuild
index 5e36f96bb5e33..78b4037af536c 100644
--- a/dev-ruby/ox/ox-2.2.1.ebuild
+++ b/dev-ruby/ox/ox-2.2.1.ebuild
@@ -15,7 +15,7 @@ HOMEPAGE="http://www.ohler.com/ox/ https://github.com/ohler55/ox"
 SRC_URI="https://github.com/ohler55/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
 LICENSE="BSD"
 
-KEYWORDS="~amd64 ~x86"
+KEYWORDS="~amd64 ~ppc64 ~x86"
 SLOT="0"
 IUSE=""