diff --git a/dev-python/deepmerge/deepmerge-1.0.0.ebuild b/dev-python/deepmerge/deepmerge-1.0.0.ebuild
index 5ef99fc07b3ee..59b68099725c5 100644
--- a/dev-python/deepmerge/deepmerge-1.0.0.ebuild
+++ b/dev-python/deepmerge/deepmerge-1.0.0.ebuild
@@ -15,7 +15,7 @@ SRC_URI="
 
 LICENSE="MIT"
 SLOT="0"
-KEYWORDS="~amd64 ~arm ~arm64 ~hppa ~ia64 ~ppc ~ppc64 ~sparc ~x86"
+KEYWORDS="~amd64 ~arm ~arm64 ~hppa ~ia64 ~ppc ~ppc64 ~s390 ~sparc ~x86"
 
 BDEPEND="dev-python/setuptools_scm[${PYTHON_USEDEP}]"