diff --git a/app-crypt/argon2/argon2-20190702.ebuild b/app-crypt/argon2/argon2-20190702.ebuild
index 8688fe4353859..335c2b5023112 100644
--- a/app-crypt/argon2/argon2-20190702.ebuild
+++ b/app-crypt/argon2/argon2-20190702.ebuild
@@ -11,7 +11,7 @@ SRC_URI="https://github.com/P-H-C/phc-winner-argon2/archive/${PV}.tar.gz -> ${P}
 
 LICENSE="|| ( Apache-2.0 CC0-1.0 )"
 SLOT="0/1"
-KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~mips ppc ppc64 s390 sparc x86"
+KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~mips ppc ppc64 ~riscv s390 sparc x86"
 IUSE="static-libs"
 
 S="${WORKDIR}/phc-winner-${P}"