diff --git a/dev-python/frozenlist/frozenlist-1.3.0.ebuild b/dev-python/frozenlist/frozenlist-1.3.0.ebuild
index dd5198b9b5482..80781122e348c 100644
--- a/dev-python/frozenlist/frozenlist-1.3.0.ebuild
+++ b/dev-python/frozenlist/frozenlist-1.3.0.ebuild
@@ -17,7 +17,7 @@ SRC_URI="
 
 LICENSE="Apache-2.0"
 SLOT="0"
-KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ppc ppc64 ~riscv sparc x86"
+KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ppc ppc64 ~riscv ~s390 sparc x86"
 
 BDEPEND="
 	$(python_gen_cond_dep '