diff --git a/dev-ml/ounit/ounit-2.0.0.ebuild b/dev-ml/ounit/ounit-2.0.0.ebuild
index bc756bb1e98b6..d58f97f523143 100644
--- a/dev-ml/ounit/ounit-2.0.0.ebuild
+++ b/dev-ml/ounit/ounit-2.0.0.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2015 Gentoo Foundation
+# Copyright 1999-2017 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI="5"
@@ -12,7 +12,7 @@ HOMEPAGE="http://ounit.forge.ocamlcore.org/"
 SRC_URI="http://forge.ocamlcore.org/frs/download.php/1258/${P}.tar.gz"
 LICENSE="MIT"
 SLOT="0/${PV}"
-KEYWORDS="amd64 arm ppc x86"
+KEYWORDS="amd64 arm ~arm64 ppc x86"
 DEPEND=""
 RDEPEND="${DEPEND}"
 IUSE=""