diff --git a/bin/tools/openfoam b/bin/tools/openfoam
index 27997ce3dc1422c032977226eb54fefd644e2275..0ff54e9d02b0548562ba06d387532028e6bac36c 100755
--- a/bin/tools/openfoam
+++ b/bin/tools/openfoam
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #------------------------------------------------------------------------------
 # =========                 |
 # \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox