diff --git a/application/controllers/api/frontend/v1/Abgabe.php b/application/controllers/api/frontend/v1/Abgabe.php
index 57a640e0b..c3f1d3a45 100644
--- a/application/controllers/api/frontend/v1/Abgabe.php
+++ b/application/controllers/api/frontend/v1/Abgabe.php
@@ -166,7 +166,7 @@ class Abgabe extends FHCAPI_Controller
 				
 				Events::trigger('projektbeurteilung_check_available', $pa->projektarbeit_id, $pa->bperson_id, $downloadPaFunc);
 					
-				if($pa->babgeschickt) {
+				if(isset($pa->babgeschickt) && $pa->babgeschickt) {
 					$downloadLink1 = '';
 					$downloadLinkFunc1 = function ($link) use (&$downloadLink1) {
 						$downloadLink1 = $link;