diff --git a/src/Bundle/ChillPersonBundle/Controller/AccompanyingCourseWorkApiController.php b/src/Bundle/ChillPersonBundle/Controller/AccompanyingCourseWorkApiController.php
index 7b6013019..96b3438dc 100644
--- a/src/Bundle/ChillPersonBundle/Controller/AccompanyingCourseWorkApiController.php
+++ b/src/Bundle/ChillPersonBundle/Controller/AccompanyingCourseWorkApiController.php
@@ -48,8 +48,10 @@ class AccompanyingCourseWorkApiController extends ApiController
      */
     public function myWorksNearEndDate(Request $request): JsonResponse
     {
-        $since = (new \DateTimeImmutable('now'))->sub(new \DateInterval('P15D'));
-        $until = (new \DateTimeImmutable('now'))->add(new \DateInterval('P15D'));
+        $since = (new \DateTimeImmutable('now'))
+            ->sub(new \DateInterval('P'.$request->query->getInt('since', 15).'D'));
+        $until = (new \DateTimeImmutable('now'))
+            ->add(new \DateInterval('P'.$request->query->getInt('since', 15).'D'));
         $total = $this->accompanyingPeriodWorkRepository
             ->countNearEndDateByUser($this->getUser(), $since, $until);
         $paginator = $this->getPaginatorFactory()->create($total);