diff --git a/src/Bundle/ChillTaskBundle/Form/SingleTaskListType.php b/src/Bundle/ChillTaskBundle/Form/SingleTaskListType.php
index 99e8ddb42..634035f96 100644
--- a/src/Bundle/ChillTaskBundle/Form/SingleTaskListType.php
+++ b/src/Bundle/ChillTaskBundle/Form/SingleTaskListType.php
@@ -284,6 +284,7 @@ class SingleTaskListType extends AbstractType
             ->setDefined('person')
             ->setDefault('person', null)
             ->setAllowedTypes('person', [Person::class, 'null'])
+            ->setDefined('accompanyingCourse')
             ->setDefined('add_status')
             ->setDefault('add_status', false)
             ->setAllowedTypes('add_status', ['bool'])