diff --git a/sci-mathematics/pari/pari-2.15.5.ebuild b/sci-mathematics/pari/pari-2.15.5.ebuild
index 73e003b95f443..b523940fbc85f 100644
--- a/sci-mathematics/pari/pari-2.15.5.ebuild
+++ b/sci-mathematics/pari/pari-2.15.5.ebuild
@@ -15,7 +15,7 @@ LICENSE="GPL-2+"
 # The subslot is the value of $soname_num obtained from
 # upstream's config/version script.
 SLOT="0/8"
-KEYWORDS="~alpha amd64 ~arm ~hppa ~mips ~ppc ppc64 ~sparc ~x86 ~amd64-linux ~x86-linux"
+KEYWORDS="~alpha amd64 ~arm ~hppa ~mips ~ppc ppc64 ~riscv ~sparc ~x86 ~amd64-linux ~x86-linux"
 IUSE="data doc examples fltk gmp test threads X"
 REQUIRED_USE="fltk? ( !X )" # mutually exclusive plot implementations
 RESTRICT="!test? ( test )"