diff --git a/Controller/ApiController.php b/Controller/ApiController.php
index d01c3e4..9d2bd17 100644
--- a/Controller/ApiController.php
+++ b/Controller/ApiController.php
@@ -71,7 +71,9 @@ final class ApiController extends Controller
     /**
      * Method to create a wiki entry from request.
      *
-     * @param RequestAbstract $request Request
+     * @param RequestAbstract  $request  Request
+     * @param ResponseAbstract $response Response
+     * @param mixed            $data     Generic data
      *
      * @return WikiDoc
      *
diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index 84dc3cf..260403d 100644
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -25,7 +25,6 @@ use Modules\Knowledgebase\Models\WikiDocMapper;
 use phpOMS\Account\PermissionType;
 use phpOMS\Asset\AssetType;
 use phpOMS\Contract\RenderableInterface;
-use phpOMS\Localization\ISO639x1Enum;
 use phpOMS\Message\Http\RequestStatusCode;
 use phpOMS\Message\RequestAbstract;
 use phpOMS\Message\ResponseAbstract;
diff --git a/Models/WikiCategory.php b/Models/WikiCategory.php
index c2d57bf..cb2b77e 100644
--- a/Models/WikiCategory.php
+++ b/Models/WikiCategory.php
@@ -159,7 +159,7 @@ class WikiCategory implements \JsonSerializable
     /**
      * Get parent category
      *
-     * @return null|self
+     * @return self
      *
      * @since 1.0.0
      */
diff --git a/Models/WikiDocMapper.php b/Models/WikiDocMapper.php
index ad171e7..934c493 100644
--- a/Models/WikiDocMapper.php
+++ b/Models/WikiDocMapper.php
@@ -46,7 +46,7 @@ final class WikiDocMapper extends DataMapperAbstract
     /**
      * Has many relation.
      *
-     * @var array<string, array{mapper:string, table:string, self?:?string, external?:?string}>
+     * @var array<string, array{mapper:string, table:string, self?:?string, external?:?string, column?:string}>
      * @since 1.0.0
      */
     protected static array $hasMany = [