diff --git a/kernel/trunk/boot/bootcode.inc b/kernel/trunk/boot/bootcode.inc
index 745320d95b..b59ed3a454 100644
--- a/kernel/trunk/boot/bootcode.inc
+++ b/kernel/trunk/boot/bootcode.inc
@@ -59,19 +59,19 @@ os_data_l:
 
 ; --------------- APM ---------------------
 apm_code_32:
-        dw     0x10        ; limit 64kb
+        dw     0x0f        ; limit 64kb
         db     0, 0, 0
-        dw     11011111b *256 +10011010b
+        dw     11010000b *256 +10011010b
         db     0x00
 apm_code_16:
-        dw     0x10
+        dw     0x0f
         db     0, 0, 0
-        dw     10011111b *256 +10011010b
+        dw     10010000b *256 +10011010b
         db     0x00
 apm_data_16:
-        dw     0x10
+        dw     0x0f
         db     0, 0, 0
-        dw     10011111b *256 +10010010b
+        dw     10010000b *256 +10010010b
         db     0x00
 ; -----------------------------------------