diff --git a/SeedDMS_Core/Core/inc.ClassIterator.php b/SeedDMS_Core/Core/inc.ClassIterator.php
index 3dd89148e..ca6bdccbe 100644
--- a/SeedDMS_Core/Core/inc.ClassIterator.php
+++ b/SeedDMS_Core/Core/inc.ClassIterator.php
@@ -1,4 +1,6 @@
 <?php
+namespace SeedDMS;
+
 /**
  * Implementation of the document iterartor
  *
@@ -11,7 +13,7 @@
  * @version    Release: @package_version@
  */
 
-class DocumentIterator implements Iterator {
+class DocumentIterator implements \Iterator {
 	/**
 	 * @var object folder
 	 */
@@ -88,7 +90,7 @@ class DocumentIterator implements Iterator {
 	} /* }}} */
 }
 
-class FolderIterator implements Iterator { /* {{{ */
+class FolderIterator implements \Iterator { /* {{{ */
 	/**
 	 * @var object folder
 	 */
@@ -177,7 +179,7 @@ class FolderIterator implements Iterator { /* {{{ */
 			echo $ff->getName()."<br />";
 		}
  */
-class FolderFilterIterator extends FilterIterator { /* {{{ */
+class FolderFilterIterator extends \FilterIterator { /* {{{ */
 	public function __construct(Iterator $iterator , $filter ) {
 		parent::__construct($iterator);
 		$this->userFilter = $filter;
@@ -196,7 +198,7 @@ class FolderFilterIterator extends FilterIterator { /* {{{ */
 			echo $ff->getID().': '.$ff->getName()."<br />";
 		}
  */
-class RecursiveFolderIterator extends FolderIterator implements RecursiveIterator { /* {{{ */
+class RecursiveFolderIterator extends FolderIterator implements \RecursiveIterator { /* {{{ */
 
 	public function hasChildren() { /* {{{ */
 		$db = $this->_dms->getDB();