diff --git a/libretro-build.sh b/libretro-build.sh
index b817ffbc..c61f9be9 100755
--- a/libretro-build.sh
+++ b/libretro-build.sh
@@ -95,6 +95,7 @@ if [ $1 ]; then
    $1
 else
    build_libretro_2048
+   build_libretro_4do
    build_libretro_bluemsx
    build_libretro_fmsx
    build_libretro_bsnes_cplusplus98