diff --git a/kernel/trunk/hid/keyboard.inc b/kernel/trunk/hid/keyboard.inc
index 0de4c1cf45..2eac6309b7 100644
--- a/kernel/trunk/hid/keyboard.inc
+++ b/kernel/trunk/hid/keyboard.inc
@@ -177,7 +177,7 @@ irq1:
        mov   eax,VKEY_SCRLOCK
        jmp   .no_key.xor
    @@:
-       mov   bh,0
+       xor   ebx,ebx
        test  ch,ch
        js    .writekey
        movzx eax,ch		 ; plain key