diff --git a/app/controllers/course/admission.php b/app/controllers/course/admission.php
index efc7c22bac944119c82a2ae884da4770b010f797..8738e60e6b3261d79bb5a860a70d921d68d84ed7 100644
--- a/app/controllers/course/admission.php
+++ b/app/controllers/course/admission.php
@@ -87,7 +87,7 @@ class Course_AdmissionController extends AuthenticatedController
                 if ($cs->isUserAllowedToAssignCourse($this->user_id, $this->course_id)) {
                     $available_coursesets[] = ['id' => $cs->getId(),
                                                     'name' => $cs->getName(),
-                                                    'chdate' => $cs->chdate,
+                                                    'chdate' => $cs->getChdate(),
                                                     'my_own' => $cs->getUserId() === $GLOBALS['user']->id];
                 }
             }
@@ -96,7 +96,7 @@ class Course_AdmissionController extends AuthenticatedController
                 if ($cs->isUserAllowedToAssignCourse($this->user_id, $this->course_id)) {
                     $available_coursesets[] = ['id' => $cs->getId(),
                                                     'name' => $cs->getName(),
-                                                    'chdate' => $cs->chdate,
+                                                    'chdate' => $cs->getChdate(),
                                                     'my_own' => $cs->getUserId() === $GLOBALS['user']->id];
                 }
             }