diff --git a/config.subr b/config.subr
index db04529..8be8ce2 100644
--- a/config.subr
+++ b/config.subr
@@ -178,7 +178,7 @@ config_asan() {
echo "int main (void) { malloc(1); return 0; }" >> "$OUT_C"
if $LIBTOOL --tag CC --mode link ${CC} ${CPPFLAGS} ${CFLAGS} \
-fsanitize-address -fno-omit-frame-pointer \
- "$OUT_C" ${LIBS} -lasan -o "$OUT" >/dev/null 2>&1; then
+ "$OUT_C" ${LIBS} -lasan -o "$OUT"; then
eval "HAVE_$NAME=true"
echo "HAVE_$NAME = true" >> ${CONFIG_MK}
else