diff --git a/recover_duts/hooks/check_ethernet.hook b/recover_duts/hooks/check_ethernet.hook
index 6dd0ff2..a0209a4 100755
--- a/recover_duts/hooks/check_ethernet.hook
+++ b/recover_duts/hooks/check_ethernet.hook
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 # shellcheck disable=SC2039
 #
 # Copyright (c) 2012 The Chromium OS Authors. All rights reserved.