diff --git a/rpi23-gen-image.sh b/rpi23-gen-image.sh
index 586860f..f5b3502 100755
--- a/rpi23-gen-image.sh
+++ b/rpi23-gen-image.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 ########################################################################
 # rpi23-gen-image.sh					       2015-2017
 #