diff --git a/build-aux/install-sh b/build-aux/install-sh
index defb86a..8175c64 100755
--- a/build-aux/install-sh
+++ b/build-aux/install-sh
@@ -1,4 +1,4 @@
-#!/usr/bin/sh
+#!/bin/sh
 # install - install a program, script, or datafile
 
 scriptversion=2018-03-11.20; # UTC