diff --git a/letsencrypt/client/setup.sh b/letsencrypt/client/setup.sh
old mode 100644
new mode 100755
index fb35eb4f7..9db81cbd2
--- a/letsencrypt/client/setup.sh
+++ b/letsencrypt/client/setup.sh
@@ -1,2 +1,2 @@
-#!/usr/bin/sh
+#!/bin/sh
 cp options-ssl.conf /etc/letsencrypt/options-ssl.conf