diff --git a/abuild.in b/abuild.in
index 1f2b4cc..9ad8a39 100644
--- a/abuild.in
+++ b/abuild.in
@@ -635,7 +635,7 @@ mkusers() {
 # helper to update config.sub to a recent version
 update_config_sub() {
 	find . -name config.sub | (local changed=false; while read f; do
-		if ! ./$f armv6-alpine-linux-muslgnueabihf 2>/dev/null; then
+		if ! ./$f riscv64-alpine-linux-musl 2>/dev/null; then
 			msg "Updating $f"
 			cp "$sharedir"/${f##*/} "$f" || return 1
 			changed=true
@@ -648,7 +648,7 @@ update_config_sub() {
 # helper to update config.guess to a recent version
 update_config_guess() {
 	find . -name config.guess | (local changed=false; while read f; do
-		if grep -q aarch64 "$f" && grep -q ppc64le "$f"; then
+		if grep -q aarch64 "$f" && grep -q ppc64le "$f" && grep -q riscv64 "$f"; then
 			msg "No update needed for $f"
 		else
 			msg "Updating $f"