diff --git a/dev-python/cftime/cftime-1.6.3.ebuild b/dev-python/cftime/cftime-1.6.3.ebuild
index f2632ffc3ecbc..bac7bb43831c7 100644
--- a/dev-python/cftime/cftime-1.6.3.ebuild
+++ b/dev-python/cftime/cftime-1.6.3.ebuild
@@ -1,4 +1,4 @@
-# Copyright 2020-2023 Gentoo Authors
+# Copyright 2020-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -17,7 +17,7 @@ HOMEPAGE="
 
 LICENSE="GPL-3"
 SLOT="0"
-KEYWORDS="~amd64 ~arm64 ~riscv ~x86"
+KEYWORDS="~amd64 ~arm64 ~riscv ~s390 ~x86"
 
 DEPEND="
 	>=dev-python/numpy-1.26.0[${PYTHON_USEDEP}]