diff --git a/Classes/Controller/BackendController.php b/Classes/Controller/BackendController.php
index 498055be9be04d9383cc0129436689097b9aa7c7..39f94e2979abc8a8eac1e5fe334ae6b84688575c 100644
--- a/Classes/Controller/BackendController.php
+++ b/Classes/Controller/BackendController.php
@@ -75,9 +75,10 @@ class BackendController extends ActionController {
 
 		// retrieve next site root id
 		$siteRootId = Utility::getSiteRoot((int) GeneralUtility::_GP('id'));
-		Utility::getCategoriesForSiteRoot($siteRootId);
+		$categories = Utility::getCategoriesForSiteRoot($siteRootId);
 
 		$this->view->assign('docHeader', $this->docHeaderComponent->docHeaderContent());
 		$this->view->assign('pageUid', $pageUid);
+		$this->view->assign('categories', $categories);
 	}
 }