diff --git a/main/gcc6/APKBUILD b/main/gcc6/APKBUILD
index 1039e3c8f..04853d6b9 100644
--- a/main/gcc6/APKBUILD
+++ b/main/gcc6/APKBUILD
@@ -4,7 +4,7 @@ _pkgver=6.4.0
 pkgrel=12
 pkgdesc="Old GCC for old vendor kernels (C compiler only)"
 url="http://gcc.gnu.org"
-arch="all"
+arch="all !riscv64" # riscv64: doesn't build
 license="GPL LGPL"
 _gccrel=$_pkgver-r$pkgrel
 depends="binutils mpc1"