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-rw-r--r--mbr/mbr.S2
1 files changed, 1 insertions, 1 deletions
diff --git a/mbr/mbr.S b/mbr/mbr.S
index f68ed890..304557b7 100644
--- a/mbr/mbr.S
+++ b/mbr/mbr.S
@@ -68,7 +68,7 @@ _start:
next:
/* Check to see if we have EBIOS */
pushw %dx /* drive number */
- movw $0x4100, %ax
+ movb $0x41, %ah /* %al == 0 already */
movw $0x55aa, %bx
xorw %cx, %cx
xorb %dh, %dh