diff --git a/src/mame/drivers/stv.c b/src/mame/drivers/stv.c
index ee38a157508..7c3fb379a70 100644
--- a/src/mame/drivers/stv.c
+++ b/src/mame/drivers/stv.c
@@ -3277,12 +3277,8 @@ ROM_START( shienryu )
 	ROM_LOAD16_WORD_SWAP( "mpr19633.3",    0x0800000, 0x0400000, CRC(e2f0b037) SHA1(97861d09e10ce5d2b10bf5559574b3f489e28077) ) // good
 ROM_END
 
-ROM_START( smleague ) /* must use USA BIOS so we include it in this set */
-
-	ROM_REGION( 0x080000, REGION_CPU1, 0 ) /* SH2 code */
-	ROM_LOAD16_WORD_SWAP( "epr-17952a.ic8",  0x000000, 0x080000, CRC(d1be2adf) SHA1(eaf1c3e5d602e1139d2090a78d7e19f04f916794) )
-	ROM_REGION( 0x080000, REGION_CPU2, 0 ) /* SH2 code */
-	ROM_COPY( REGION_CPU1,0,0,0x080000)
+ROM_START( smleague ) /* only runs with the USA bios */
+	STV_BIOS
 
 	ROM_REGION32_BE( 0x3000000, REGION_USER1, 0 ) /* SH2 code */
 	ROM_LOAD( "epr18777.13",               0x0000000, 0x0080000, CRC(8d180866) SHA1(d47ebabab6e06400312d39f68cd818852e496b96) )