diff --git a/src/mame/drivers/aleck64.c b/src/mame/drivers/aleck64.c
index e0db5a4f7f3..31593ed582f 100644
--- a/src/mame/drivers/aleck64.c
+++ b/src/mame/drivers/aleck64.c
@@ -975,8 +975,7 @@ ROM_START( mtetrisc )
 	PIF_BOOTROM
 
 	ROM_REGION32_BE( 0x4000000, "user2", 0 )
-	ROM_LOAD16_WORD_SWAP( "nus-zcaj.u4", 0x000000, 0x1000000, CRC(ec4563fc) SHA1(4d5a30873a5850cf4cd1c0bdbe24e1934f163cd0) )
-
+	ROM_LOAD16_WORD_SWAP( "nus-zcaj.u4", 0x000000, 0x1000000, CRC(c9de64db) SHA1(59932c70b43ff8e9264c670f37b3abbe939b7f95) )
 	ROM_REGION32_BE( 0x100000, "user3", 0 )
 	ROM_LOAD ( "tet-01m.u5", 0x000000, 0x100000, CRC(f78f859b) SHA1(b07c85e0453869fe43792f42081f64a5327e58e6) )