diff --git a/kernel/trunk/bus/pci/pci32.inc b/kernel/trunk/bus/pci/pci32.inc
index d639c89c4..e67afcea9 100644
--- a/kernel/trunk/bus/pci/pci32.inc
+++ b/kernel/trunk/bus/pci/pci32.inc
@@ -569,9 +569,9 @@ sys_pcibios:
 	cmp	ebp, 1			; PCI_FUNCTION_ID
 	jnz	.not_PCI_BIOS_PRESENT
 	mov	edx, 'PCI '
-	mov	al, [OS_BASE+0x2F0000 + 0x9020]
-	mov	bx, [OS_BASE+0x2F0000 + 0x9022]
-	mov	cl, [OS_BASE+0x2F0000 + 0x9021]
+	mov	al, [BOOT_VAR + 0x9020]
+	mov	bx, [BOOT_VAR + 0x9022]
+	mov	cl, [BOOT_VAR + 0x9021]
 	xor	ah, ah
 	jmp	.return_abcd
 
diff --git a/kernel/trunk/kernel.asm b/kernel/trunk/kernel.asm
index 12992e94d..aaf29e3e8 100644
--- a/kernel/trunk/kernel.asm
+++ b/kernel/trunk/kernel.asm
@@ -5121,7 +5121,7 @@ yes_shutdown_param:
            mov  ecx,1000
            rep  movsb
 
-           mov  esi,OS_BASE+0x2F0000    ; restore 0x0 - 0xffff
+           mov  esi, BOOT_VAR    ; restore 0x0 - 0xffff
            mov  edi, OS_BASE
            mov  ecx,0x10000/4
            cld