diff --git a/dev-ml/stringext/stringext-1.6.0.ebuild b/dev-ml/stringext/stringext-1.6.0.ebuild
index 1c0c709360548..c0a0574151c65 100644
--- a/dev-ml/stringext/stringext-1.6.0.ebuild
+++ b/dev-ml/stringext/stringext-1.6.0.ebuild
@@ -10,7 +10,7 @@ SRC_URI="https://github.com/rgrinberg/${PN}/releases/download/${PV}/${P}.tbz"
 
 LICENSE="MIT"
 SLOT="0"
-KEYWORDS="~amd64"
+KEYWORDS="~amd64 ~arm64"
 IUSE="+ocamlopt test"
 RESTRICT="!test? ( test )"