diff --git a/dev-python/littleutils/littleutils-0.2.2.ebuild b/dev-python/littleutils/littleutils-0.2.2.ebuild
index 110768f867a0b..01803426c5020 100644
--- a/dev-python/littleutils/littleutils-0.2.2.ebuild
+++ b/dev-python/littleutils/littleutils-0.2.2.ebuild
@@ -13,7 +13,7 @@ SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
 
 LICENSE="MIT"
 SLOT="0"
-KEYWORDS="amd64 arm arm64 hppa ~ia64 ppc ppc64 ~riscv sparc x86"
+KEYWORDS="amd64 arm arm64 hppa ~ia64 ppc ppc64 ~riscv ~s390 sparc x86"
 
 python_test() {
 	"${EPYTHON}" -m doctest -v ${PN}/__init__.py || die "Tests fail with ${EPYTHON}"