diff --git a/dev-python/fonttools/fonttools-3.44.0.ebuild b/dev-python/fonttools/fonttools-3.44.0.ebuild
index d5716d48b459d..bf891f527b8aa 100644
--- a/dev-python/fonttools/fonttools-3.44.0.ebuild
+++ b/dev-python/fonttools/fonttools-3.44.0.ebuild
@@ -14,7 +14,7 @@ SRC_URI="https://github.com/fonttools/fonttools/archive/${PV}.tar.gz -> ${P}.tar
 
 LICENSE="BSD"
 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/fonttools/fonttools-4.0.1.ebuild b/dev-python/fonttools/fonttools-4.0.1.ebuild
index aee4a3c0a5e98..49cdbfc16d8b6 100644
--- a/dev-python/fonttools/fonttools-4.0.1.ebuild
+++ b/dev-python/fonttools/fonttools-4.0.1.ebuild
@@ -14,7 +14,7 @@ SRC_URI="https://github.com/fonttools/fonttools/archive/${PV}.tar.gz -> ${P}.tar
 
 LICENSE="BSD"
 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=""