diff --git a/main/inc/lib/fckeditor/myconfig.php b/main/inc/lib/fckeditor/myconfig.php
index 60fb15ce4f..10b9cb22e1 100644
--- a/main/inc/lib/fckeditor/myconfig.php
+++ b/main/inc/lib/fckeditor/myconfig.php
@@ -174,6 +174,11 @@ $config['MediaBrowser'] = true ;  // for video (flv) files.
 // false - as a dialog whithin the page (recommended).
 $config['OpenSimpleFileManagerInANewWindow'] = false;
 
+// How the advanced file manager to be opened:
+// true  - in a new browser window, or
+// false - as a dialog whithin the page (recommended).
+$config['OpenAdvancedFileManagerInANewWindow'] = false;
+
 
 /*
  * Quick-upload tabs.