diff --git a/dev-python/monotonic/monotonic-0.5.ebuild b/dev-python/monotonic/monotonic-0.5.ebuild
index fd220ddc14232..ce597396e26a8 100644
--- a/dev-python/monotonic/monotonic-0.5.ebuild
+++ b/dev-python/monotonic/monotonic-0.5.ebuild
@@ -14,7 +14,7 @@ SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
 
 LICENSE="Apache-2.0"
 SLOT="0"
-KEYWORDS="~amd64 ~x86"
+KEYWORDS="~amd64 ~arm64 ~x86"
 IUSE=""
 
 DEPEND="dev-python/setuptools[${PYTHON_USEDEP}]"