diff --git a/dev-python/pluggy/pluggy-0.5.2.ebuild b/dev-python/pluggy/pluggy-0.5.2.ebuild
index e8b47647de2aa..ed42e6d41295b 100644
--- a/dev-python/pluggy/pluggy-0.5.2.ebuild
+++ b/dev-python/pluggy/pluggy-0.5.2.ebuild
@@ -13,7 +13,7 @@ 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 ~amd64-fbsd ~amd64-linux ~x86-linux"
+KEYWORDS="alpha amd64 arm arm64 hppa ia64 ppc ppc64 s390 sparc x86 ~amd64-fbsd ~amd64-linux ~x86-linux"
 IUSE="test"
 
 RDEPEND=""
diff --git a/dev-python/pluggy/pluggy-0.6.0.ebuild b/dev-python/pluggy/pluggy-0.6.0.ebuild
index 8a2feccd98dd6..b594318c978da 100644
--- a/dev-python/pluggy/pluggy-0.6.0.ebuild
+++ b/dev-python/pluggy/pluggy-0.6.0.ebuild
@@ -13,7 +13,7 @@ SRC_URI="mirror://pypi/${P:0:1}/${PN}/${P}.tar.gz"
 
 LICENSE="MIT"
 SLOT="0"
-KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~sparc ~x86 ~amd64-fbsd ~amd64-linux ~x86-linux"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sparc ~x86 ~amd64-fbsd ~amd64-linux ~x86-linux"
 IUSE="test"
 
 RDEPEND=""