diff --git a/Classes/Controller/NewsByAuthorController.php b/Classes/Controller/NewsByAuthorController.php
index 1cd75c8bdc0fcb3323b7c82c28c208c263e72818..69ef3ee7bc5d40ded2305d1843dd3c31fef6e33e 100644
--- a/Classes/Controller/NewsByAuthorController.php
+++ b/Classes/Controller/NewsByAuthorController.php
@@ -45,7 +45,7 @@ class NewsByAuthorController extends AbstractController {
 	 * @throws \InvalidArgumentException
 	 * @throws \TYPO3\CMS\Extbase\Persistence\Exception\InvalidQueryException
 	 */
-	public function listAction($authorId) {
+	public function listAction($authorId = 0) {
 		if ($authorId) {
 			$newsAuthorsIds[] = $authorId;
 		} else {