diff --git a/src/mame/drivers/cps2.c b/src/mame/drivers/cps2.c
index c5a2c814111..3d7a9aa8eb8 100644
--- a/src/mame/drivers/cps2.c
+++ b/src/mame/drivers/cps2.c
@@ -4232,7 +4232,7 @@ ROM_END
 ROM_START( mvsc )
 	ROM_REGION( CODE_SIZE, "maincpu", 0 )      /* 68000 code */
 	ROM_LOAD16_WORD_SWAP( "mvce.03a", 0x000000, 0x80000, CRC(824e4a90) SHA1(5c79c166d988d8a75d9941f4ee6fa4d6476e55e1) )
-	ROM_LOAD16_WORD_SWAP( "mvce.04a", 0x080000, 0x80000, CRC(cac02153) SHA1(ee9f9da6fda53f21ba7b74367612c90281269690) )
+	ROM_LOAD16_WORD_SWAP( "mvce.04a", 0x080000, 0x80000, BAD_DUMP CRC(cac02153) SHA1(ee9f9da6fda53f21ba7b74367612c90281269690) )
 	ROM_LOAD16_WORD_SWAP( "mvc.05a",  0x100000, 0x80000, CRC(2d8c8e86) SHA1(b07d640a734c5d336054ed05195786224c9a6cd4) )
 	ROM_LOAD16_WORD_SWAP( "mvc.06a",  0x180000, 0x80000, CRC(8528e1f5) SHA1(cd065c05268ab581b05676da544baf6af642acac) )
 	ROM_LOAD16_WORD_SWAP( "mvc.07",   0x200000, 0x80000, CRC(c3baa32b) SHA1(d35589847e0753e869ffcd7c3abed925bfdb0fa2) )