diff --git a/sys-devel/bison/bison-3.7.6.recipe b/sys-devel/bison/bison-3.7.6.recipe
index 3413865b6..ed68ba4dc 100644
--- a/sys-devel/bison/bison-3.7.6.recipe
+++ b/sys-devel/bison/bison-3.7.6.recipe
@@ -18,7 +18,7 @@ SOURCE_URI="https://ftpmirror.gnu.org/bison/bison-$portVersion.tar.xz
 CHECKSUM_SHA256="67d68ce1e22192050525643fc0a7a22297576682bef6a5c51446903f5aeef3cf"
 #PATCHES="bison-${portVersion}.patchset"
 
-ARCHITECTURES="?x86_gcc2 x86 x86_64 ?arm ?ppc ?sparc ?m68k"
+ARCHITECTURES="?x86_gcc2 x86 x86_64 arm ?ppc ?sparc ?m68k arm64 riscv64"
 SECONDARY_ARCHITECTURES="x86 ?x86_gcc2"
 
 PROVIDES="