diff --git a/Classes/Controller/NewsController.php b/Classes/Controller/NewsController.php
index 78e16800e2..097c5c07a5 100644
--- a/Classes/Controller/NewsController.php
+++ b/Classes/Controller/NewsController.php
@@ -89,7 +89,7 @@ public function __construct(
     /**
      * Initializes the current action
      */
-    protected function initializeAction()
+    protected function initializeAction(): void
     {
         GeneralUtility::makeInstance(ClassCacheManager::class)->reBuildSimple();
         $this->buildSettings();