diff --git a/puppet/zulip_ops/files/install-aws-cli b/puppet/zulip_ops/files/install-aws-cli
old mode 100644
new mode 100755
index 62c3dde2f6..179a5ee0c7
--- a/puppet/zulip_ops/files/install-aws-cli
+++ b/puppet/zulip_ops/files/install-aws-cli
@@ -1,4 +1,4 @@
-# shellcheck shell=bash
+#!/usr/bin/env bash
 
 set -eu