diff --git a/dev-ml/spawn/spawn-0.13.0.ebuild b/dev-ml/spawn/spawn-0.13.0.ebuild
index 128e5d3f7283f..cc11b53493513 100644
--- a/dev-ml/spawn/spawn-0.13.0.ebuild
+++ b/dev-ml/spawn/spawn-0.13.0.ebuild
@@ -11,7 +11,7 @@ SRC_URI="https://github.com/janestreet/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.g
 
 LICENSE="MIT"
 SLOT="0/${PV}"
-KEYWORDS="~amd64"
+KEYWORDS="~amd64 ~arm"
 IUSE="ocamlopt test"
 RESTRICT="!test? ( test )"