diff --git a/src/mame/konami/hornet.cpp b/src/mame/konami/hornet.cpp
index 98702f7c245..9adf5f28570 100644
--- a/src/mame/konami/hornet.cpp
+++ b/src/mame/konami/hornet.cpp
@@ -1738,7 +1738,7 @@ ROM_START(gradius4a)
 	ROM_LOAD( "837a10.14p",   0x400000, 0x400000, CRC(1419cad2) SHA1(a6369a5c29813fa51e8246d0c091736f32994f3d) )
 
 	ROM_REGION(0x2000, "m48t58",0)
-	ROM_LOAD( "m48t58y-70pc1", 0x000000, 0x002000, BAD_DUMP CRC(935f9d05) SHA1(c3a787dff1b2ac4942858ffa1574405db01292b6) ) // using the one from gradius4, no hardware error but may not be right
+	ROM_LOAD( "m48t58y-70pc1", 0x000000, 0x002000, BAD_DUMP CRC(799bd8d0) SHA1(c69b5bb99657c2fdb71049ba1db0075a024fe8ff) ) // hand edited the one from gradius4 to be version UAA, needs real dump
 ROM_END
 
 ROM_START(nbapbp)
@@ -1880,8 +1880,8 @@ ROM_END
 
 /*************************************************************************/
 
-GAME(  1998, gradius4,  0,        hornet,     gradius4, hornet_state, init_gradius4, ROT0, "Konami", "Gradius IV: Fukkatsu (ver JAC, 837c01)", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
-GAME(  1998, gradius4a, gradius4, hornet,     gradius4, hornet_state, init_gradius4, ROT0, "Konami", "Gradius IV: Fukkatsu (ver JAC, 837a01)", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
+GAME(  1998, gradius4,  0,        hornet,     gradius4, hornet_state, init_gradius4, ROT0, "Konami", "Gradius IV: Fukkatsu (ver JAC)", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
+GAME(  1998, gradius4a, gradius4, hornet,     gradius4, hornet_state, init_gradius4, ROT0, "Konami", "Gradius IV (ver UAA)",           MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
 GAME(  1998, nbapbp,    0,        hornet,     nbapbp,   hornet_state, init_hornet, ROT0, "Konami", "NBA Play By Play (ver JAA)", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
 GAME(  1998, nbapbpa,   nbapbp,   hornet,     nbapbp,   hornet_state, init_hornet, ROT0, "Konami", "NBA Play By Play (ver AAB)", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
 GAME(  1998, terabrst,  0,        terabrst,   terabrst, hornet_state, init_hornet, ROT0, "Konami", "Teraburst (1998/07/17 ver UEL)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )