diff --git a/private/lib/dao/DaoSaveableDefaultImplementation.php b/private/lib/dao/DaoSaveableDefaultImplementation.php
index 25b346d..fe9b006 100644
--- a/private/lib/dao/DaoSaveableDefaultImplementation.php
+++ b/private/lib/dao/DaoSaveableDefaultImplementation.php
@@ -12,7 +12,9 @@ abstract class DaoSaveableDefaultImplementation implements DaoSaveable, Serializ
 		if (is_null($saveableObject)){
 			$saveableObject = new stdClass();
 		}
-		$this->updateFromSaveableObj($saveableObject);
+		else {
+			$this->updateFromSaveableObj($saveableObject);
+		}
 	}
 	
 	public function __set($attr,$value){
diff --git a/private/lib/dao/models/NotiziaModel.php b/private/lib/dao/models/NotiziaModel.php
index d4d8091..376e9cf 100644
--- a/private/lib/dao/models/NotiziaModel.php
+++ b/private/lib/dao/models/NotiziaModel.php
@@ -67,7 +67,7 @@ class NotiziaModel extends HasMediaModel{
 			self::CATEGORY_CONSIGLI_ESPERTI=>array("label"=>"I consigli degli esperti","mainMenu"=>false, "hidden"=>false,"pages"=>array("list"=>"consigliEsperti.php"),"color"=>"#3e3e3e","isSubmenu"=>null),
 	);
 	
-	public function __construct($saveableObject){
+	public function __construct($saveableObject = null){
 		parent::__construct($saveableObject);
 		
 		if (!$this->hasProperty("about")){