diff --git a/tools/build-ardour-stack b/tools/build-ardour-stack
index fe72843db0..2c19f862c7 100755
--- a/tools/build-ardour-stack
+++ b/tools/build-ardour-stack
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 function die () {
     echo $*