diff --git a/dev-python/hpack/hpack-2.3.0-r1.ebuild b/dev-python/hpack/hpack-2.3.0-r1.ebuild
index 5c5ebb0616139..43a4c23db3fad 100644
--- a/dev-python/hpack/hpack-2.3.0-r1.ebuild
+++ b/dev-python/hpack/hpack-2.3.0-r1.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2018 Gentoo Foundation
+# Copyright 1999-2019 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=6
@@ -12,7 +12,7 @@ SRC_URI="mirror://pypi/${P:0:1}/${PN}/${P}.tar.gz"
 
 LICENSE="MIT"
 SLOT="0"
-KEYWORDS="alpha amd64 arm arm64 hppa ia64 ppc ppc64 sparc x86"
+KEYWORDS="alpha amd64 arm arm64 hppa ia64 ppc ppc64 s390 sparc x86"
 IUSE="test"
 
 RDEPEND=""
diff --git a/dev-python/hpack/hpack-3.0.0.ebuild b/dev-python/hpack/hpack-3.0.0.ebuild
index 812dcbc635461..bd7d46650509a 100644
--- a/dev-python/hpack/hpack-3.0.0.ebuild
+++ b/dev-python/hpack/hpack-3.0.0.ebuild
@@ -12,7 +12,7 @@ SRC_URI="https://github.com/python-hyper/${PN}/archive/v${PV}.tar.gz -> ${P}.tar
 
 LICENSE="MIT"
 SLOT="0"
-KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~sh ~sparc ~x86 ~amd64-fbsd"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~amd64-fbsd"
 IUSE="test"
 
 RDEPEND=""