diff --git a/dev-python/testtools/testtools-0.9.36.ebuild b/dev-python/testtools/testtools-0.9.36.ebuild
index 2893f0833b4ad..b3963b9dd4575 100644
--- a/dev-python/testtools/testtools-0.9.36.ebuild
+++ b/dev-python/testtools/testtools-0.9.36.ebuild
@@ -17,7 +17,7 @@ SRC_URI="https://launchpad.net/${PN}/${SERIES}/${PV}/+download/${P}.tar.gz"
 
 LICENSE="MIT"
 SLOT="0"
-KEYWORDS="alpha amd64 arm hppa ia64 ~mips ppc ppc64 ~s390 ~sh sparc x86 ~amd64-fbsd ~x86-fbsd ~amd64-linux ~x86-linux"
+KEYWORDS="alpha amd64 arm ~arm64 hppa ia64 ~mips ppc ppc64 ~s390 ~sh sparc x86 ~amd64-fbsd ~x86-fbsd ~amd64-linux ~x86-linux"
 IUSE="doc test"
 
 RDEPEND="dev-python/mimeparse[${PYTHON_USEDEP}]