diff --git a/scripts/build-static-libfesvr.sh b/scripts/build-static-libfesvr.sh
index 96724bd6..d5b7f896 100755
--- a/scripts/build-static-libfesvr.sh
+++ b/scripts/build-static-libfesvr.sh
@@ -11,7 +11,11 @@ fi
 
 set -e
 
-objs=$(head -n 1 <(make -f <( echo -e 'include Makefile\n$(info $(value fesvr_objs))') -n))
+objs=$(make -n -f <(
+    echo 'include Makefile'
+    echo '$(info $(value fesvr_objs))'
+    ) | head -n 1)
+
 ar rcs -o libfesvr.a $objs
 cp -f libfesvr.a "${RISCV}/lib"