diff --git a/src/mame/drivers/segas16b.c b/src/mame/drivers/segas16b.c
index 2db7751e0ca..8843c5a6ff3 100644
--- a/src/mame/drivers/segas16b.c
+++ b/src/mame/drivers/segas16b.c
@@ -5082,7 +5082,7 @@ ROM_START( hwchamp )
 	ROM_CONTINUE(                    0x0e0000, 0x010000 )
 
 	ROM_REGION( 0x50000, "soundcpu", 0 ) /* sound CPU */
-	ROM_LOAD( "epr-11239.a10", 0x00000, 0x08000, CRC(96a12d9d) SHA1(f4ba70c3b5d80a1b6a187c940b922d5182d5ab12) )
+	ROM_LOAD( "epr-11240.a10", 0x00000, 0x08000, CRC(96a12d9d) SHA1(f4ba70c3b5d80a1b6a187c940b922d5182d5ab12) )
 	ROM_LOAD( "mpr-11244.a11", 0x10000, 0x20000, CRC(4191c03d) SHA1(40809fb80527980015d3b5c4ca7cf159bc09cf5a) ) /* 28 pin Fujitsu MB831000 MASK rom */
 	ROM_LOAD( "mpr-11245.a12", 0x30000, 0x20000, CRC(a4d53f7b) SHA1(71123a8ecfa093897c6f2bb7312e6c755be14521) ) /* 28 pin Fujitsu MB831000 MASK rom */