diff --git a/build.sh b/build.sh
index d1603f4a9cd9a36e8e2a92b8cb9124c801f5464b..dc31f3b47f47975309e46c063bee142d1cc1a14f 100755
--- a/build.sh
+++ b/build.sh
@@ -1,15 +1,4 @@
-#!/bin/bash
-
-if [ -f "~/.bashrc" ] ; then
-    . ~/.bashrc
-elif [ -f "~/.bash_profile" ] ; then
-   ~/.bash_profile
-elif [ -f "~/.zshrc" ] ; then
-   . ~/.zshrc
-else
-   echo "not found user environment. load /etc/profile"
-   . /etc/profile
-fi
+#!/usr/bin/env bash
 
 build_for_mac() {
     if [ ! `which brew` ]; then