diff --git a/dev-ml/cppo/cppo-1.5.0.ebuild b/dev-ml/cppo/cppo-1.5.0.ebuild
index 39915b69c0897..c9d5a1d7375c6 100644
--- a/dev-ml/cppo/cppo-1.5.0.ebuild
+++ b/dev-ml/cppo/cppo-1.5.0.ebuild
@@ -11,7 +11,7 @@ SRC_URI="https://github.com/mjambon/cppo/archive/v${PV}.tar.gz -> ${P}.tar.gz"
 
 SLOT="0/${PV}"
 LICENSE="BSD"
-KEYWORDS="~amd64 ~arm ~ppc ~x86"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~x86"
 
 IUSE="examples +ocamlopt"