diff --git a/dev-perl/Business-ISSN/Business-ISSN-1.6.0.ebuild b/dev-perl/Business-ISSN/Business-ISSN-1.6.0.ebuild
index c7feaba6e7232..76bcd8a6c8a0e 100644
--- a/dev-perl/Business-ISSN/Business-ISSN-1.6.0.ebuild
+++ b/dev-perl/Business-ISSN/Business-ISSN-1.6.0.ebuild
@@ -11,7 +11,7 @@ DESCRIPTION="Object and functions to work with International Standard Serial Num
 
 LICENSE="Artistic-2"
 SLOT="0"
-KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~riscv ~sparc ~x86"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
 
 RDEPEND="
 	virtual/perl-Exporter