diff --git a/src/bootloader_bios_disk.asm b/src/bootloader_bios_disk.asm
index 8d8cbc5..21e3204 100644
--- a/src/bootloader_bios_disk.asm
+++ b/src/bootloader_bios_disk.asm
@@ -1,4 +1,5 @@
 disk_read:
 	pusha
 
-
+	mov ah, BIOS_DISK_READ 
+	mov al, dh ; number of sectors to read