diff --git a/roles/head-node/files/do-switch b/roles/head-node/files/do-switch
index 27c6819..c370ccb 100755
--- a/roles/head-node/files/do-switch
+++ b/roles/head-node/files/do-switch
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/ash
 
 ID=$1
 HOSTNAME=$2