diff --git a/dev-haskell/skein/skein-1.0.9.4.ebuild b/dev-haskell/skein/skein-1.0.9.4.ebuild
index cfece06321709..9cf3a95193154 100644
--- a/dev-haskell/skein/skein-1.0.9.4.ebuild
+++ b/dev-haskell/skein/skein-1.0.9.4.ebuild
@@ -14,7 +14,7 @@ SRC_URI="https://hackage.haskell.org/package/${P}/${P}.tar.gz"
 
 LICENSE="BSD"
 SLOT="0/${PV}"
-KEYWORDS="~amd64 ~arm64 ~ppc64 ~x86"
+KEYWORDS="~amd64 ~arm64 ~ppc64 ~riscv ~x86"
 IUSE="big-endian force-endianness reference"
 
 RDEPEND=">=dev-haskell/cereal-0.3:=[profile?] <dev-haskell/cereal-0.6:=[profile?]