diff --git a/private/lib/dao/DaoSaveableDefaultImplementation.php b/private/lib/dao/DaoSaveableDefaultImplementation.php
index 6673ad5..37348bc 100644
--- a/private/lib/dao/DaoSaveableDefaultImplementation.php
+++ b/private/lib/dao/DaoSaveableDefaultImplementation.php
@@ -96,6 +96,7 @@ abstract class DaoSaveableDefaultImplementation implements DaoSaveable, Serializ
 	 */
 	public function updateFromSaveableObj($saveableObject){
 		$this->saveableObject = $this->toObject($saveableObject);
+
 		if (!property_exists($this->saveableObject, "deleted")){
 			$this->saveableObject->deleted = false;
 		}
diff --git a/private/lib/dao/GenericDao.php b/private/lib/dao/GenericDao.php
index 974950e..f3d9857 100644
--- a/private/lib/dao/GenericDao.php
+++ b/private/lib/dao/GenericDao.php
@@ -164,6 +164,9 @@ class GenericDao{
 		
 		$bulk = new MongoDB\Driver\BulkWrite();
 		if ( array_key_exists("_id", $saveObj) && !is_null($saveObj["_id"]) ){
+			if (is_string( $saveObj["_id"]) ){
+				$saveObj["_id"] = new MongoDB\BSON\ObjectID($saveObj["_id"]);
+			}
 			$bulk->update(array("_id"=>$saveObj["_id"] ),$saveObj);
 		}
 		else {