diff --git a/dev-python/wcag-contrast-ratio/wcag-contrast-ratio-0.9.ebuild b/dev-python/wcag-contrast-ratio/wcag-contrast-ratio-0.9.ebuild
index 830d26ee8aafa..a47e108b682ff 100644
--- a/dev-python/wcag-contrast-ratio/wcag-contrast-ratio-0.9.ebuild
+++ b/dev-python/wcag-contrast-ratio/wcag-contrast-ratio-0.9.ebuild
@@ -17,7 +17,7 @@ SRC_URI="
 
 LICENSE="MIT"
 SLOT="0"
-KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~ia64 ~ppc ~ppc64 ~riscv ~sparc"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~ia64 ~ppc ~ppc64 ~riscv ~s390 ~sparc"
 
 BDEPEND="
 	test? (