--- a/Helpviewer/Bookmarks/DefaultBookmarks.xbel	Sat Dec 02 12:40:52 2017 +0100
+++ b/Helpviewer/Bookmarks/DefaultBookmarks.xbel	Sun Dec 31 18:27:40 2017 +0100
@@ -29,7 +29,7 @@
             <bookmark href="http://planet.qt.io/">
                 <title>Planet Qt</title>
             </bookmark>
-            <bookmark href="http://qtcentre.org/">
+            <bookmark href="http://www.qtcentre.org/">
                 <title>Qt Centre</title>
             </bookmark>
             <bookmark href="https://www.linux-apps.com/browse/ord/latest/">