diff --git a/src/mame/drivers/cojag.c b/src/mame/drivers/cojag.c
index bf830e5a2dd..045b24e72ab 100644
--- a/src/mame/drivers/cojag.c
+++ b/src/mame/drivers/cojag.c
@@ -1168,10 +1168,10 @@ MACHINE_DRIVER_END
 
 ROM_START( area51t ) /* 68020 based, Area51 Time Warner License  Date: Nov 15, 1995 */
 	ROM_REGION32_BE( 0x200000, "user1", 0 )	/* 2MB for 68020 code */
-	ROM_LOAD32_BYTE( "3h.bin", 0x00000, 0x80000, CRC(e70a97c4) SHA1(39dabf6bf3dc6f717a587f362d040bfb332be9e1) )
-	ROM_LOAD32_BYTE( "3p.bin", 0x00001, 0x80000, CRC(e9c9f4bd) SHA1(7c6c50372d45dca8929767241b092339f3bab4d2) )
-	ROM_LOAD32_BYTE( "3m.bin", 0x00002, 0x80000, CRC(6f135a81) SHA1(2d9660f240b14481e8c46bc98713e9dc12035063) )
-	ROM_LOAD32_BYTE( "3k.bin", 0x00003, 0x80000, CRC(94f50c14) SHA1(a54552e3ac5c4f481ba4f2fc7d724534576fe76c) )
+	ROM_LOAD32_BYTE( "136105-0003c.3h", 0x00000, 0x80000, CRC(e70a97c4) SHA1(39dabf6bf3dc6f717a587f362d040bfb332be9e1) )
+	ROM_LOAD32_BYTE( "136105-0002c.3p", 0x00001, 0x80000, CRC(e9c9f4bd) SHA1(7c6c50372d45dca8929767241b092339f3bab4d2) )
+	ROM_LOAD32_BYTE( "136105-0001c.3m", 0x00002, 0x80000, CRC(6f135a81) SHA1(2d9660f240b14481e8c46bc98713e9dc12035063) )
+	ROM_LOAD32_BYTE( "136105-0000c.3k", 0x00003, 0x80000, CRC(94f50c14) SHA1(a54552e3ac5c4f481ba4f2fc7d724534576fe76c) )
 
 	DISK_REGION( "ide" )
 	DISK_IMAGE( "area51t", 0, SHA1(d2865cc7b1bb08a4393a72013a90e18d8a8f9860) )