diff --git a/private/lib/dao/mediaModels/MediaModel.php b/private/lib/dao/mediaModels/MediaModel.php
index 27ac63a..4090953 100644
--- a/private/lib/dao/mediaModels/MediaModel.php
+++ b/private/lib/dao/mediaModels/MediaModel.php
@@ -25,6 +25,9 @@ class MediaModel extends Model implements MediaInterface{
 	public function __construct($saveableObject = null){
 		parent::__construct($saveableObject);
 		$this->setMediaRenderer();
+		if (!$this->hasProperty("owner")){
+			$this->owner = new stdClass();
+		}
 	}
 	
 	public function __set($attr,$value){