diff --git a/Models/WikiCategoryMapper.php b/Models/WikiCategoryMapper.php
index 28dc9ab..0f745ce 100755
--- a/Models/WikiCategoryMapper.php
+++ b/Models/WikiCategoryMapper.php
@@ -48,11 +48,11 @@ final class WikiCategoryMapper extends DataMapperAbstract
      */
     protected static array $belongsTo = [
         'parent' => [
-            'mapper' => self::class,
+            'mapper'     => self::class,
             'external'   => 'wiki_category_parent',
         ],
         'app' => [
-            'mapper' => WikiAppMapper::class,
+            'mapper'     => WikiAppMapper::class,
             'external'   => 'wiki_category_app',
         ],
     ];
diff --git a/Models/WikiDocMapper.php b/Models/WikiDocMapper.php
index ee799f9..d78b828 100755
--- a/Models/WikiDocMapper.php
+++ b/Models/WikiDocMapper.php
@@ -66,11 +66,11 @@ final class WikiDocMapper extends DataMapperAbstract
      */
     protected static array $belongsTo = [
         'category' => [
-            'mapper' => WikiCategoryMapper::class,
+            'mapper'     => WikiCategoryMapper::class,
             'external'   => 'wiki_article_category',
         ],
         'app' => [
-            'mapper' => WikiAppMapper::class,
+            'mapper'     => WikiAppMapper::class,
             'external'   => 'wiki_article_app',
         ],
     ];