diff --git a/core/moduledesign.class.inc.php b/core/moduledesign.class.inc.php
index 23a62a862..90e3588e9 100644
--- a/core/moduledesign.class.inc.php
+++ b/core/moduledesign.class.inc.php
@@ -243,7 +243,7 @@ class ModuleDesignElement extends DOMElement
 	 */
 	public function Dump($bReturnRes = false)
 	{
-		$oDoc = new iTopDesignDocument();
+		$oDoc = new ModuleDesign();
 		$oClone = $oDoc->importNode($this->cloneNode(true), true);
 		$oDoc->appendChild($oClone);