diff --git a/dev-libs/utfcpp/utfcpp-3.1.ebuild b/dev-libs/utfcpp/utfcpp-3.1.ebuild
index c51eefe42aad6..9bd3480908d99 100644
--- a/dev-libs/utfcpp/utfcpp-3.1.ebuild
+++ b/dev-libs/utfcpp/utfcpp-3.1.ebuild
@@ -22,7 +22,7 @@ fi
 
 LICENSE="Boost-1.0"
 SLOT="0"
-KEYWORDS="~amd64 ~ppc ~ppc64 ~x86"
+KEYWORDS="~amd64 ~arm64 ~ppc ~ppc64 ~x86"
 IUSE="test"
 RESTRICT="!test? ( test )"