diff --git a/dev-perl/Test-Differences/Test-Differences-0.710.0.ebuild b/dev-perl/Test-Differences/Test-Differences-0.710.0.ebuild
index 61636991210de..cb19ede06adad 100644
--- a/dev-perl/Test-Differences/Test-Differences-0.710.0.ebuild
+++ b/dev-perl/Test-Differences/Test-Differences-0.710.0.ebuild
@@ -10,7 +10,7 @@ inherit perl-module
 DESCRIPTION="Test strings and data structures and show differences if not ok"
 
 SLOT="0"
-KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~mips ppc ppc64 ~riscv sparc x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x64-solaris"
+KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x64-solaris"
 
 RDEPEND="
 	>=dev-perl/Capture-Tiny-0.240.0