diff --git a/source/kernel/bank2/val.mac b/source/kernel/bank2/val.mac
index def23ff8..1fedd15d 100644
--- a/source/kernel/bank2/val.mac
+++ b/source/kernel/bank2/val.mac
@@ -1852,7 +1852,7 @@ endif
 ; Assumes:      UPB_DIRT=UPB_VOLID+6       UPB_ID=UPB_DIRT+1
 ;		  (UD_CMSK, UD_CSHFT, UD_RES, UD_NFAT, UD_ODE, UD_WDS
 ;		   UD_SFAT, UD_SDIR, UD_SDAT, UD_NCLU, UD_DIRT, UD_ID,
-;		   UD_MBYTE and UD_ACLU) must all be sequential.
+;		   and UD_MBYTE) must all be sequential.
 ;
 ;
 		call	_NEW_UPB
@@ -2157,9 +2157,12 @@ upb_dos220:
 						; from UPB to unit descriptor
         ld	(hl),a
 
-		inc hl	  ;Initialize next cluster to check for allocation to 2
-		ld (hl),1 ;(it's stored as value-1)
-		inc hl
+		pop hl
+		push hl
+		ld bc,UD_ACLU##
+		add hl,bc  
+		ld (hl),1     ;Initialize next cluster to check for allocation to 2
+		inc hl        ;(it's stored as value-1)
 		ld (hl),0
 
 		pop	hl
diff --git a/source/kernel/kvar.mac b/source/kernel/kvar.mac
index 9900876d..61b86ec4 100644
--- a/source/kernel/kvar.mac
+++ b/source/kernel/kvar.mac
@@ -193,8 +193,6 @@ size	macro	name
 	field	4,UD_ID		;Current volume ID
 	field	1,UD_MBYTE	;Media descriptor byte
 
-	field   2,UD_ACLU	;Next cluster to check for allocation -1
-;
 	field	2,UD_CDIR	;First cluster of current directory
 				;  -ve   => root directory
 				;  0000h => cluster not known
@@ -209,6 +207,8 @@ size	macro	name
                         ;(for device-based drivers this is only used if the driver
 						; provides configuration, in order to get the default mapping
 						; for the drive)
+	field   2,UD_ACLU	;Next cluster to check for allocation -1
+
 ;
 	;--- Extra fields used when mounting files
 	;    This extra space should NOT be allocated unless a file is mounted to the drive