Index: temp/trunk/html/admin/system/bkup.php
===================================================================
--- temp/trunk/html/admin/system/bkup.php	(revision 5671)
+++ temp/trunk/html/admin/system/bkup.php	(revision 5672)
@@ -215,5 +215,5 @@
 	if (count($array) > 0) {
 		foreach($array as $key => $val) {
-			if ($val = "") {
+			if ($val == "") {
 				$line .= "".null.",";
 			}else{