diff --git a/apps/dav/lib/CalDAV/Trashbin/DeletedCalendarObjectsCollection.php b/apps/dav/lib/CalDAV/Trashbin/DeletedCalendarObjectsCollection.php
index f7f0bd7b5127d..690a8a61cac31 100644
--- a/apps/dav/lib/CalDAV/Trashbin/DeletedCalendarObjectsCollection.php
+++ b/apps/dav/lib/CalDAV/Trashbin/DeletedCalendarObjectsCollection.php
@@ -31,11 +31,15 @@
 use Sabre\DAV\Exception\Forbidden;
 use Sabre\DAV\Exception\NotFound;
 use Sabre\DAV\Exception\NotImplemented;
+use Sabre\DAVACL\ACLTrait;
+use Sabre\DAVACL\IACL;
 use function array_map;
 use function implode;
 use function preg_match;
 
-class DeletedCalendarObjectsCollection implements ICalendarObjectContainer {
+class DeletedCalendarObjectsCollection implements ICalendarObjectContainer, IACL {
+	use ACLTrait;
+
 	public const NAME = 'objects';
 
 	/** @var CalDavBackend */
@@ -129,4 +133,8 @@ private function getRelativeObjectPath(array $calendarInfo): string {
 			[$calendarInfo['id'], 'ics'],
 		);
 	}
+
+	public function getOwner() {
+		return $this->principalInfo['uri'];
+	}
 }