diff --git a/dev-python/pytest/pytest-3.10.1.ebuild b/dev-python/pytest/pytest-3.10.1.ebuild
index de5d4c01da624..7419f06cfccb3 100644
--- a/dev-python/pytest/pytest-3.10.1.ebuild
+++ b/dev-python/pytest/pytest-3.10.1.ebuild
@@ -13,7 +13,7 @@ SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
 
 LICENSE="MIT"
 SLOT="0"
-KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc64 ~sparc ~x86 ~amd64-fbsd ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sparc ~x86 ~amd64-fbsd ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
 IUSE="test"
 
 # When bumping, please check setup.py for the proper py version
diff --git a/dev-python/pytest/pytest-4.0.2.ebuild b/dev-python/pytest/pytest-4.0.2.ebuild
index de5d4c01da624..7419f06cfccb3 100644
--- a/dev-python/pytest/pytest-4.0.2.ebuild
+++ b/dev-python/pytest/pytest-4.0.2.ebuild
@@ -13,7 +13,7 @@ SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
 
 LICENSE="MIT"
 SLOT="0"
-KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc64 ~sparc ~x86 ~amd64-fbsd ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sparc ~x86 ~amd64-fbsd ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
 IUSE="test"
 
 # When bumping, please check setup.py for the proper py version