diff --git a/build.sh b/build.sh
index f23dd16671..66cf8f2dc5 100755
--- a/build.sh
+++ b/build.sh
@@ -729,6 +729,8 @@ usage() {
     $ECHO "  self-update - git pull, recompile, make local boot image, bootstrap"
     $ECHO "  quick-update - git pull, refresh-all, save"
     $ECHO "  update|latest - git pull, recompile, download a boot image, bootstrap"
+    $ECHO "  compile - compile the binary"
+    $ECHO "  recompile - recompile the binary"
     $ECHO "  bootstrap - bootstrap with existing boot image"
     $ECHO "  net-bootstrap - recompile, download a boot image, bootstrap"
     $ECHO "  make-target - find and print the os-arch-cpu string"
@@ -770,6 +772,7 @@ case "$1" in
     quick-update) update; refresh_image ;;
     update|latest) update; download_and_bootstrap ;;
     compile) find_build_info; make_factor ;;
+    recompile) find_build_info; make_clean; make_factor ;;
     bootstrap) get_config_info; bootstrap ;;
     net-bootstrap) net_bootstrap_no_pull ;;
     make-target) FIND_MAKE_TARGET=true; ECHO=false; find_build_info; exit_script ;;