From 0278ad2c02c65717e3c7de22ef0e1e0afe91816b Mon Sep 17 00:00:00 2001
From: Jens Lody <jens@jenslody.de>
Date: Mon, 30 Oct 2017 19:23:02 +0100
Subject: [PATCH] Fix warning about non-existing property.

---
 src/prefs.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/prefs.js b/src/prefs.js
index 87a15b7..1ebd3b1 100644
--- a/src/prefs.js
+++ b/src/prefs.js
@@ -515,7 +515,8 @@ const WeatherPrefsWidget = new GObject.Class({
 
         let config = this.configWidgets;
         for (let i in config) {
-            if (config[i][0].active != this[config[i][1]])
+            if ((config[i][0].active !== undefined) &&
+                (config[i][0].active != this[config[i][1]]))
                 config[i][0].active = this[config[i][1]];
         }
     },