diff --git a/Source/HBIOS/sd.asm b/Source/HBIOS/sd.asm
index 5cf837e8..2930fa72 100644
--- a/Source/HBIOS/sd.asm
+++ b/Source/HBIOS/sd.asm
@@ -1639,9 +1639,7 @@ SD_SELECT2:
 SD_DESELECT:
 	LD	A,(SD_OPRVAL)
 #IF (SD_DEVCNT > 1)
-;	AND	~(SD_CS0 | SD_CS1)
-SD_CS	.EQU	(SD_CS0 | SD_CS1)	; HACK TO WORK AROUND UZ80AX EXPRESSION EVAL ISSUE
-	AND	~SD_CS
+	AND	~(SD_CS0 | SD_CS1)
 #ELSE
 	AND	~SD_CS0
 #ENDIF