diff --git a/src/emu/video/m50458.c b/src/emu/video/m50458.c
index 3aa7a2c5335..c8869b1e886 100644
--- a/src/emu/video/m50458.c
+++ b/src/emu/video/m50458.c
@@ -41,7 +41,8 @@ ADDRESS_MAP_END
 // internal GFX ROM (TODO: GFXs in here should be 12x18, not 16x18)
 ROM_START( m50458 )
 	ROM_REGION( 0x1200, "m50458", 0 )
-	ROM_LOAD("m50458-001sp",     0x0000, 0x1200, CRC(444f597d) SHA1(96beda6aba3d9f7bb781a3cd0352ed6ae45e2ebe) )
+	ROM_LOAD("m50458-001sp",     0x0000, 0x1200, BAD_DUMP CRC(444f597d) SHA1(96beda6aba3d9f7bb781a3cd0352ed6ae45e2ebe) )
+	ROM_LOAD("m50458_char.bin",     0x0000, 0x1200, BAD_DUMP CRC(011cc342) SHA1(d5b9f32d6e251b4b25945267d7c68c099bd83e96) )
 ROM_END
 
 WRITE16_MEMBER( m50458_device::vreg_120_w)