diff --git a/x86/build.sh b/x86/build.sh
old mode 100644
new mode 100755
index 726e2ae..3a3f63d
--- a/x86/build.sh
+++ b/x86/build.sh
@@ -1,4 +1,4 @@
-#!/usr/bin/bash
+#!/bin/bash
 
 
 nemu_build() {