diff --git a/libretro-build-xdk1.sh b/libretro-build-xdk1.sh
index b3c925e1..10d5aea3 100644
--- a/libretro-build-xdk1.sh
+++ b/libretro-build-xdk1.sh
@@ -98,6 +98,7 @@ else
 	#build_libretro_gambatte
 	#build_libretro_nx
 	build_libretro_o2em
+	build_libretro_prosystem
 	build_libretro_stella
 	build_libretro_prboom
 	build_libretro_nestopia
diff --git a/libretro-build-xdk360.sh b/libretro-build-xdk360.sh
index a3784821..2bccaacc 100644
--- a/libretro-build-xdk360.sh
+++ b/libretro-build-xdk360.sh
@@ -56,6 +56,8 @@ else
 	build_libretro_nx
 	# O2EM - not tested yet - could be endian unsafe
 	#build_libretro_o2em
+	# Prosystem - not tested yet - could be endian unsafe
+	#build_libretro_prosystem
 	build_libretro_prboom
 	build_libretro_stella
 	build_libretro_quicknes