diff --git a/build.sbt b/build.sbt
index d725f57e8..99b1a6434 100644
--- a/build.sbt
+++ b/build.sbt
@@ -102,7 +102,9 @@ script := {
       s.log.info("Generating '"+f.getName+"' script ("+(if(is64) "64b" else "32b")+")...")
     }
     val paths = (res.getAbsolutePath +: out.getAbsolutePath +: cps.map(_.data.absolutePath)).mkString(System.getProperty("path.separator"))
-    IO.write(f, s"""|#!/bin/bash --posix
+    IO.write(f, s"""|#!/usr/bin/env bash
+                    |
+                    | set -o posix
                     |
                     |SCALACLASSPATH="$paths"
                     |