diff --git a/deploy/routeros.sh b/deploy/routeros.sh
index 91b08763..232ccc66 100644
--- a/deploy/routeros.sh
+++ b/deploy/routeros.sh
@@ -1,4 +1,4 @@
-#!/usr/bin/env sh
+#!/bin/bash
 
 # Here is a script to deploy cert to routeros router.
 # Deploy the cert to remote routeros
@@ -144,21 +144,21 @@ routeros_deploy() {
     return 1
   fi
 
-  DEPLOY_SCRIPT_CMD="/system script add name=\"LE Cert Deploy - $_cdomain\" owner=admin policy=ftp,read,write,password,sensitive 
-source=\"## generated by routeros deploy script in acme.sh\r\n
-\r\n /certificate remove [ find name=$_cdomain.cer_0 ]
-\r\n /certificate remove [ find name=$_cdomain.cer_1 ]
-\r\n delay 1
-\r\n /certificate import file-name=$_cdomain.cer passphrase=\\\"\\\"
-\r\n /certificate import file-name=$_cdomain.key passphrase=\\\"\\\"
-\r\n delay 1
-\r\n /file remove $_cdomain.cer
-\r\n /file remove $_cdomain.key
-\r\n delay 2
+  DEPLOY_SCRIPT_CMD="/system script add name=\"LE Cert Deploy - $_cdomain\" owner=admin policy=ftp,read,write,password,sensitive \
+source=\"## generated by routeros deploy script in acme.sh\r\n\
+\r\n /certificate remove [ find name=$_cdomain.cer_0 ]\
+\r\n /certificate remove [ find name=$_cdomain.cer_1 ]\
+\r\n delay 1\
+\r\n /certificate import file-name=$_cdomain.cer passphrase=\\\"\\\"\
+\r\n /certificate import file-name=$_cdomain.key passphrase=\\\"\\\"\
+\r\n delay 1\
+\r\n /file remove $_cdomain.cer\
+\r\n /file remove $_cdomain.key\
+\r\n delay 2\
 $router_os_services\""
 
   # shellcheck disable=SC2029
-  ssh "$Le_router_os_username@$Le_router_os_host" $DEPLOY_SCRIPT_CMD
+  ssh "$Le_router_os_username@$Le_router_os_host" "$DEPLOY_SCRIPT_CMD"
   # shellcheck disable=SC2029
   ssh "$Le_router_os_username@$Le_router_os_host" "/system script run \"LE Cert Deploy - $_cdomain\""
   # shellcheck disable=SC2029