diff --git a/application/controllers/api/frontend/v1/stv/Mobility.php b/application/controllers/api/frontend/v1/stv/Mobility.php
index 669f2338d..b4b5a6916 100644
--- a/application/controllers/api/frontend/v1/stv/Mobility.php
+++ b/application/controllers/api/frontend/v1/stv/Mobility.php
@@ -45,9 +45,8 @@ class Mobility extends FHCAPI_Controller
 	public function getMobilitaeten($student_uid)
 	{
 		$this->BisioModel->addSelect("*");
-		$this->BisioModel->addSelect("lehrveranstaltung_id as lehrveranstaltung");
 		$this->BisioModel->addJoin('bis.tbl_mobilitaetsprogramm mp', 'ON (mp.mobilitaetsprogramm_code = bis.tbl_bisio.mobilitaetsprogramm_code)', 'LEFT');
-		$this->BisioModel->addJoin('lehre.tbl_lehreinheit le', 'ON (le.lehreinheit_id = bis.tbl_bisio.lehreinheit_id)');
+		$this->BisioModel->addJoin('lehre.tbl_lehreinheit le', 'ON (le.lehreinheit_id = bis.tbl_bisio.lehreinheit_id)','LEFT');
 		$result = $this->BisioModel->loadWhere(
 			array('student_uid' => $student_uid)
 		);
@@ -162,16 +161,14 @@ class Mobility extends FHCAPI_Controller
 			}
 		}
 
-		$this->terminateWithSuccess();
+		$this->terminateWithSuccess($bisio_id);
 	}
 
 	public function loadMobility($bisio_id)
 	{
 		$this->BisioModel->addSelect("*");
-		$this->BisioModel->addSelect("lehrveranstaltung_id as lehrveranstaltung");
-		$this->BisioModel->addSelect("le.lehreinheit_id as lehreinheit");
 		$this->BisioModel->addJoin('bis.tbl_mobilitaetsprogramm mp', 'ON (mp.mobilitaetsprogramm_code = bis.tbl_bisio.mobilitaetsprogramm_code)', 'LEFT');
-		$this->BisioModel->addJoin('lehre.tbl_lehreinheit le', 'ON (le.lehreinheit_id = bis.tbl_bisio.lehreinheit_id)');
+		$this->BisioModel->addJoin('lehre.tbl_lehreinheit le', 'ON (le.lehreinheit_id = bis.tbl_bisio.lehreinheit_id)','LEFT');
 		$result = $this->BisioModel->loadWhere(
 			array('bisio_id' => $bisio_id)
 		);
@@ -182,6 +179,7 @@ class Mobility extends FHCAPI_Controller
 
 	public function updateMobility()
 	{
+
 		$this->load->library('form_validation');
 		$authUID = getAuthUID();