diff --git a/src/mess/drivers/cbm2.c b/src/mess/drivers/cbm2.c
index 0d77c031e77..07e6e461570 100644
--- a/src/mess/drivers/cbm2.c
+++ b/src/mess/drivers/cbm2.c
@@ -2756,7 +2756,7 @@ ROM_START( cbm720_de )
 	ROM_LOAD( "901240-03.u60", 0x2000, 0x2000, CRC(72aa44e1) SHA1(0d7f77746290afba8d0abeb87c9caab9a3ad89ce) )
 
 	ROM_REGION( 0x2000, "kernal", 0 )
-	ROM_LOAD( "324886-03a.u61", 0x0000, 0x2000, CRC(554b008d) SHA1(1483a46924308d86f4c7f9cb71c34851c510fcf4) )
+	ROM_LOAD( "324866-03a.u61", 0x0000, 0x2000, CRC(554b008d) SHA1(1483a46924308d86f4c7f9cb71c34851c510fcf4) )
 
 	ROM_REGION( 0x1000, "charom", 0 )
 	ROM_LOAD( "324867-02.u25", 0x0000, 0x1000, NO_DUMP )