diff --git a/src/mame/drivers/lastduel.c b/src/mame/drivers/lastduel.c
index a2d6950324b..17a8e248297 100644
--- a/src/mame/drivers/lastduel.c
+++ b/src/mame/drivers/lastduel.c
@@ -641,7 +641,7 @@ ROM_START( lastduelb )
 	ROM_LOAD16_BYTE( "ldu-03.rom",   0x40001, 0x10000, CRC(5aa4df72) SHA1(9e7315b793f09c8b422bad1ce776588e3a48d80c) )
 
 	ROM_REGION( 0x10000 , "audiocpu", 0 ) /* audio CPU */
-	ROM_LOAD( "ld_02.16h",    0x0000, 0x10000, CRC(91834d0c) SHA1(aaa63b8470fc19b82c25028ab27675a7837ab9a1) )
+	ROM_LOAD( "ld_02.bin",    0x0000, 0x10000, CRC(91834d0c) SHA1(aaa63b8470fc19b82c25028ab27675a7837ab9a1) )
 
 	ROM_REGION( 0x80000, "gfx1", ROMREGION_DISPOSE )
 	ROM_LOAD( "ld_09.bin",    0x000000, 0x10000, CRC(f8fd5243) SHA1(fad80d8959f50a83eb2e47788a8183284d19bea6) ) /* sprites */
@@ -654,7 +654,7 @@ ROM_START( lastduelb )
 	ROM_LOAD( "ld_14.bin",    0x070000, 0x10000, CRC(edf515cc) SHA1(8dc68d1d4e480afe9614ea85e2eced3fd3917484) )
 
 	ROM_REGION( 0x08000, "gfx2", ROMREGION_DISPOSE )
-	ROM_LOAD( "ld_01.12f",    0x000000, 0x08000, CRC(ad3c6f87) SHA1(1a5ef003c0eb641484921dc0c11450c53ee315f5) ) /* 8x8 text */
+	ROM_LOAD( "ld_01.bin",    0x000000, 0x08000, CRC(ad3c6f87) SHA1(1a5ef003c0eb641484921dc0c11450c53ee315f5) ) /* 8x8 text */
 
 	ROM_REGION( 0x40000, "gfx3", ROMREGION_DISPOSE )
 	ROM_LOAD( "ld_17.bin",    0x000000, 0x10000, CRC(7188bfdd) SHA1(26c47af6abb4e6f5e11e2dd6b56113a54c0e6269) ) /* tiles */