diff --git a/src/mess/drivers/tb303.c b/src/mess/drivers/tb303.c
index 175e2492946..6f8536a636b 100644
--- a/src/mess/drivers/tb303.c
+++ b/src/mess/drivers/tb303.c
@@ -286,7 +286,7 @@ MACHINE_CONFIG_END
 
 ROM_START( tb303 )
 	ROM_REGION( 0x0800, "maincpu", 0 )
-	ROM_LOAD( "d650c-133.ic8", 0x0000, 0x0800, CRC(dd2f26ae) SHA1(7f5e37f38d970219dc9e5d49a20dc5335a5c0b30) )
+	ROM_LOAD( "d650c-133.ic8", 0x0000, 0x0800, CRC(0805b37a) SHA1(9a0c1891b56446535cef66a11b8366e1b22cc23f) )
 ROM_END