Index: branches/5.1.x/core/units/helpers/minifiers/minify_helper.php
===================================================================
diff -u -N -r13889 -r14117
--- branches/5.1.x/core/units/helpers/minifiers/minify_helper.php	(.../minify_helper.php)	(revision 13889)
+++ branches/5.1.x/core/units/helpers/minifiers/minify_helper.php	(.../minify_helper.php)	(revision 14117)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: minify_helper.php 13889 2010-08-29 09:30:02Z alex $
+* @version	$Id: minify_helper.php 14117 2011-01-05 11:43:30Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2010 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -209,7 +209,7 @@
 
 			unlink($tmp_file);
 
-			if (!is_null($compressed_string)) {
+			if (!is_null($compressed_string) && $compressed_string) {
 				$string = $compressed_string;
 				return ;
 			}