diff --git a/ci/toolchain_install.sh b/ci/toolchain_install.sh
index ef52eb1a..5194974b 100755
--- a/ci/toolchain_install.sh
+++ b/ci/toolchain_install.sh
@@ -82,6 +82,7 @@ while [ "$1" != "" ]; do
         -llvm ) llvm
                 ;;
         -all ) riscv
+               riscv64
                llvm
                pocl
                verilator