diff --git a/dev-python/dirty-equals/dirty-equals-0.4.ebuild b/dev-python/dirty-equals/dirty-equals-0.4.ebuild
index 3dbb5df6ed8a1..59aabadc9e4a7 100644
--- a/dev-python/dirty-equals/dirty-equals-0.4.ebuild
+++ b/dev-python/dirty-equals/dirty-equals-0.4.ebuild
@@ -21,7 +21,7 @@ SRC_URI="
 
 LICENSE="MIT"
 SLOT="0"
-KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~riscv ~x86"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~riscv ~s390 ~x86"
 
 RDEPEND="
 	>=dev-python/pytz-2021.3[${PYTHON_USEDEP}]