diff --git a/nodes/core/hardware/nrgpio b/nodes/core/hardware/nrgpio
index 88b381a7d..6a575ce62 100755
--- a/nodes/core/hardware/nrgpio
+++ b/nodes/core/hardware/nrgpio
@@ -1,3 +1,4 @@
+#!/bin/bash
 #
 # Copyright 2014 IBM Corp.
 #