diff --git a/server/usr/local/sbin/rs-add-ssh-key b/server/usr/local/sbin/rs-add-ssh-key
index 9fedec0..f8de1e6 100755
--- a/server/usr/local/sbin/rs-add-ssh-key
+++ b/server/usr/local/sbin/rs-add-ssh-key
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 ##
 # rs-add-ssh-key
 # Copyright (C) 2013 by Janek Bevendorff