diff --git a/Makefile b/Makefile
index 30cec7c..95247ff 100644
--- a/Makefile
+++ b/Makefile
@@ -241,4 +241,4 @@ tar:
 	rm -rf /tmp/xv6
 	mkdir -p /tmp/xv6
 	cp dist/* dist/.gdbinit.tmpl /tmp/xv6
-	(cd /tmp; tar cf - xv6) | gzip >xv6-rev3.tar.gz
+	(cd /tmp; tar cf - xv6) | gzip >xv6-rev4.tar.gz
diff --git a/xv6-rev4.tar.gz b/xv6-rev4.tar.gz
new file mode 100644
index 0000000..adb3acc
Binary files /dev/null and b/xv6-rev4.tar.gz differ