diff --git a/dev-python/nptyping/nptyping-1.4.4.ebuild b/dev-python/nptyping/nptyping-1.4.4.ebuild
index 148b4c18a8b0b..106d9851c8e0c 100644
--- a/dev-python/nptyping/nptyping-1.4.4.ebuild
+++ b/dev-python/nptyping/nptyping-1.4.4.ebuild
@@ -17,7 +17,7 @@ SRC_URI="
 
 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"
 
 RDEPEND="
 	dev-python/numpy[${PYTHON_USEDEP}]