diff --git a/libretro-build-psp1.sh b/libretro-build-psp1.sh
index c6d89c37..d8b44dd8 100755
--- a/libretro-build-psp1.sh
+++ b/libretro-build-psp1.sh
@@ -47,4 +47,5 @@ else
    build_libretro_handy
    build_libretro_vecx
    build_libretro_tgbdual
+   build_libretro_prosystem
 fi