diff --git a/model/cortex-a57x1-a53x1.sh b/model/cortex-a57x1-a53x1.sh
index f046b2a..53befa6 100644
--- a/model/cortex-a57x1-a53x1.sh
+++ b/model/cortex-a57x1-a53x1.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Copyright (c) 2019, Arm Limited. All rights reserved.
 #