diff --git a/dev-python/tox/tox-3.12.1.ebuild b/dev-python/tox/tox-3.12.1.ebuild
index 00af2159a863f..60b49b252a614 100644
--- a/dev-python/tox/tox-3.12.1.ebuild
+++ b/dev-python/tox/tox-3.12.1.ebuild
@@ -13,7 +13,7 @@ SRC_URI="https://github.com/tox-dev/tox/archive/${PV}.tar.gz -> ${P}.tar.gz"
 
 LICENSE="MIT"
 SLOT="0"
-KEYWORDS="~amd64 ~ia64 ~sparc ~x86"
+KEYWORDS="~amd64 ~arm64 ~ia64 ~sparc ~x86"
 
 # doc disabled because of missing deps in tree
 IUSE="test"