diff --git a/Admin/Installer.php b/Admin/Installer.php
index 9aeb80a..f67e0ef 100755
--- a/Admin/Installer.php
+++ b/Admin/Installer.php
@@ -47,7 +47,7 @@ final class Installer extends InstallerAbstract
 
         $id = WikiAppMapper::create($app);
 
-        $category = new WikiCategory();
+        $category      = new WikiCategory();
         $category->app = new NullWikiApp($id);
         $category->setName('Default');
 
@@ -61,7 +61,7 @@ final class Installer extends InstallerAbstract
 
             $id = WikiAppMapper::create($app);
 
-            $category = new WikiCategory();
+            $category      = new WikiCategory();
             $category->app = new NullWikiApp($id);
             $category->setName('Default');
         }
diff --git a/Controller/ApiController.php b/Controller/ApiController.php
index a605546..133ef42 100755
--- a/Controller/ApiController.php
+++ b/Controller/ApiController.php
@@ -85,10 +85,10 @@ final class ApiController extends Controller
      */
     public function createWikiDocFromRequest(RequestAbstract $request, ResponseAbstract $response, $data = null) : WikiDoc
     {
-        $doc         = new WikiDoc();
-        $doc->name   = (string) $request->getData('title');
-        $doc->doc    = Markdown::parse((string) ($request->getData('plain') ?? ''));
-        $doc->docRaw = (string) ($request->getData('plain') ?? '');
+        $doc           = new WikiDoc();
+        $doc->name     = (string) $request->getData('title');
+        $doc->doc      = Markdown::parse((string) ($request->getData('plain') ?? ''));
+        $doc->docRaw   = (string) ($request->getData('plain') ?? '');
         $doc->category = new NullWikiCategory((int) ($request->getData('category') ?? 1));
         $doc->setLanguage((string) ($request->getData('language') ?? $request->getLanguage()));
         $doc->setStatus((int) ($request->getData('status') ?? WikiStatus::INACTIVE));
@@ -334,7 +334,7 @@ final class ApiController extends Controller
      */
     public function createWikiCategoryFromRequest(RequestAbstract $request) : WikiCategory
     {
-        $category = new WikiCategory();
+        $category      = new WikiCategory();
         $category->app = new NullWikiApp((int) ($request->getData('app') ?? 1));
 
         if ($request->getData('parent') !== null) {
diff --git a/Models/WikiCategoryL11nMapper.php b/Models/WikiCategoryL11nMapper.php
index ce33ae7..05f0e6f 100644
--- a/Models/WikiCategoryL11nMapper.php
+++ b/Models/WikiCategoryL11nMapper.php
@@ -15,7 +15,6 @@ declare(strict_types=1);
 namespace Modules\Knowledgebase\Models;
 
 use phpOMS\DataStorage\Database\DataMapperAbstract;
-use phpOMS\Localization\Defaults\LanguageMapper;
 
 /**
  * Category mapper class.
diff --git a/Models/WikiDocMapper.php b/Models/WikiDocMapper.php
index 0e8ab69..307d51d 100755
--- a/Models/WikiDocMapper.php
+++ b/Models/WikiDocMapper.php
@@ -113,7 +113,7 @@ final class WikiDocMapper extends DataMapperAbstract
     {
         $query ??= self::getQuery(null, [], $relations, $depth);
 
-        $query->where(static::$table . '_' . $depth . '.' . 'wiki_article_app', '=', $app)
+        $query->where(static::$table . '_' . $depth . '.wiki_article_app', '=', $app)
             ->limit($limit);
 
         if (!empty(static::$createdAt)) {