diff --git a/src/sys/boot/Makefile b/src/sys/boot/Makefile
index 0ad0afb..4656db2 100755
--- a/src/sys/boot/Makefile
+++ b/src/sys/boot/Makefile
@@ -16,7 +16,9 @@
 install: writeimg
 	($(NASM) bootsec.asm -o bootsec)
 	(cat ../compile/ubix.elf >>bootsec)
+	(dd if=/dev/zero of=./buf bs=512 count=10)
 	(cat buf >>bootsec)
+	(rm -f buf)
 	(./writeimg $(FDDEVICE))
 
 formatdsk: format
diff --git a/src/sys/boot/buf b/src/sys/boot/buf
deleted file mode 100755
index ed17e0a..0000000
--- a/src/sys/boot/buf
+++ /dev/null
Binary files differ