Index: branches/5.3.x/core/kernel/utility/system_config.php
===================================================================
diff -u -N -r16327 -r16395
--- branches/5.3.x/core/kernel/utility/system_config.php	(.../system_config.php)	(revision 16327)
+++ branches/5.3.x/core/kernel/utility/system_config.php	(.../system_config.php)	(revision 16395)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: system_config.php 16327 2016-01-23 19:36:25Z alex $
+* @version	$Id: system_config.php 16395 2016-11-12 12:43:14Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2013 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -271,6 +271,10 @@
 
 		fclose($fp);
 
+		if ( function_exists('opcache_invalidate') ) {
+			opcache_invalidate($this->file);
+		}
+
 		$this->isChanged = false;
 	}