diff --git a/kernel/drive.asm b/kernel/drive.asm
index 84494d5..e26caee 100644
--- a/kernel/drive.asm
+++ b/kernel/drive.asm
@@ -19,6 +19,7 @@ biosnum	resb 1
 dskflag	resb 1
 
 	; disk buffer for I/O operations
+	alignb 2
 dskbuf	resb 512
 
 dpt	resb DPTSIZE