diff --git a/constants/SP2000.inc b/constants/SP2000.inc
index f591b0a..2f43dbb 100644
--- a/constants/SP2000.inc
+++ b/constants/SP2000.inc
@@ -582,9 +582,9 @@ SPRINTER:
 .FDD			EQU #00
 .RAM			EQU #60
 .ATA			EQU #80
-.HDD			EQU .HDD
+.HDD			EQU .ATA
 .ATAPI			EQU #C0
-.CDROM			EQU .CDROM
+.CDROM			EQU .ATAPI
 TRDOS:
 .FDD			EQU #00
 .RAM			EQU #04