diff --git a/dev-python/coverage/coverage-4.5.4.ebuild b/dev-python/coverage/coverage-4.5.4.ebuild
index b0bb45b31246a..5da1dac252e0c 100644
--- a/dev-python/coverage/coverage-4.5.4.ebuild
+++ b/dev-python/coverage/coverage-4.5.4.ebuild
@@ -13,7 +13,7 @@ SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
 
 LICENSE="BSD"
 SLOT="0"
-KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~mips ppc ppc64 sparc x86"
+KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~mips ppc ppc64 ~s390 sparc x86"
 IUSE="test"
 RESTRICT="!test? ( test )"
 
diff --git a/dev-python/coverage/coverage-5.1.ebuild b/dev-python/coverage/coverage-5.1.ebuild
index ee9c68a28a5ea..279b142fc1a9d 100644
--- a/dev-python/coverage/coverage-5.1.ebuild
+++ b/dev-python/coverage/coverage-5.1.ebuild
@@ -14,7 +14,7 @@ SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
 
 LICENSE="BSD"
 SLOT="0"
-KEYWORDS="~alpha amd64 arm arm64 ~ia64 ~mips ppc ppc64 sparc x86"
+KEYWORDS="~alpha amd64 arm arm64 ~ia64 ~mips ppc ppc64 ~s390 sparc x86"
 #IUSE="test"
 # The tests are impossible to appease.  Please run them externally
 # via tox.  Or fix the ebuild if you have hours of time to spend