diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index 12f4351..8436ed8 100755
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -188,7 +188,7 @@ final class BackendController extends Controller
         $view->setTemplate('/Modules/Knowledgebase/Theme/Backend/wiki-category-list');
         $view->addData('nav', $this->app->moduleManager->get('Navigation')->createNavigationMid(1005901001, $request, $response));
 
-        $list = WikiCategoryMapper::getByApp($app, 2);
+        $list = WikiCategoryMapper::withConditional('language', $response->getLanguage())::getByApp($app, 2);
         $view->setData('categories', $list);
 
         return $view;
diff --git a/Controller/Controller.php b/Controller/Controller.php
index 08f05ae..b8151ef 100755
--- a/Controller/Controller.php
+++ b/Controller/Controller.php
@@ -25,7 +25,7 @@ use phpOMS\Module\WebInterface;
  * @link    https://orange-management.org
  * @since   1.0.0
  */
-class Controller extends ModuleAbstract implements WebInterface
+class Controller extends ModuleAbstract
 {
     /**
      * Module path.
diff --git a/Theme/Backend/wiki-category-list.tpl.php b/Theme/Backend/wiki-category-list.tpl.php
index 32488ba..57435b2 100755
--- a/Theme/Backend/wiki-category-list.tpl.php
+++ b/Theme/Backend/wiki-category-list.tpl.php
@@ -35,7 +35,7 @@ echo $this->getData('nav')->render();
                         $url = UriFactory::build('{/prefix}admin/account/settings?{?}&id=' . $value->getId()); ?>
                 <tr tabindex="0" data-href="<?= $url; ?>">
                     <td data-label="<?= $this->getHtml('ID', '0', '0'); ?>"><a href="<?= $url; ?>"><?= $this->printHtml($value->getId()); ?></a>
-                    <td data-label="<?= $this->getHtml('Name'); ?>"><a href="<?= $url; ?>"><?= $this->printHtml($value->name); ?></a>
+                    <td data-label="<?= $this->getHtml('Name'); ?>"><a href="<?= $url; ?>"><?= $this->printHtml($value->getName()); ?></a>
                     <td data-label="<?= $this->getHtml('Parent'); ?>"><a href="<?= $url; ?>"><?= $this->printHtml($value->parent !== null ? $value->parent->getName() : ''); ?></a>
                 <?php endforeach; ?>
                 <?php if (empty($categories)) : ?>