From ab78072a7296c782fb06fa00f39e570835ee7c30 Mon Sep 17 00:00:00 2001
From: Jyben <benjamin.letessier@gmail.com>
Date: Fri, 28 Feb 2020 18:43:19 +0100
Subject: [PATCH] Fix issue #6

---
 app/main-process/firewall.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/main-process/firewall.js b/app/main-process/firewall.js
index 95572d0..740e68d 100644
--- a/app/main-process/firewall.js
+++ b/app/main-process/firewall.js
@@ -77,7 +77,7 @@ function _execBash(command, win) {
   sudo.exec(command, options,
     function (error, stdout, stderr) {
       _ping(win);
-      if (stderr !== '' && !stderr.toUpperCase().includes('BAD RULE')) {
+      if (stderr !== '' && stderr !== undefined && !stderr.toUpperCase().includes('BAD RULE')) {
         log.error(`stderr: ${stderr}`);
       }
     }