diff --git a/Classes/Domain/Model/Category.php b/Classes/Domain/Model/Category.php
new file mode 100644
index 0000000..1b1412e
--- /dev/null
+++ b/Classes/Domain/Model/Category.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace Wrm\Events\Domain\Model;
+
+/*
+ * Copyright (C) 2021 Daniel Siepmann <coding@daniel-siepmann.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+use TYPO3\CMS\Extbase\Domain\Model\Category as ExtbaseCategory;
+
+/**
+ * Extend original model to include furher properties.
+ */
+class Category extends ExtbaseCategory
+{
+    /**
+     * @var int
+     */
+    protected $sorting = 0;
+
+    public function getSorting(): int
+    {
+        return $this->sorting;
+    }
+}
diff --git a/Classes/Domain/Model/Event.php b/Classes/Domain/Model/Event.php
index a613211..79d5772 100644
--- a/Classes/Domain/Model/Event.php
+++ b/Classes/Domain/Model/Event.php
@@ -4,7 +4,6 @@ namespace Wrm\Events\Domain\Model;
 
 use TYPO3\CMS\Extbase\Annotation as Extbase;
 use TYPO3\CMS\Extbase\DomainObject\AbstractEntity;
-use TYPO3\CMS\Extbase\Domain\Model\Category;
 use TYPO3\CMS\Extbase\Domain\Model\FileReference;
 use TYPO3\CMS\Extbase\Object\ObjectManager;
 use TYPO3\CMS\Extbase\Persistence\ObjectStorage;
@@ -209,7 +208,7 @@ class Event extends AbstractEntity
     /**
      * categories
      *
-     * @var \TYPO3\CMS\Extbase\Persistence\ObjectStorage<\TYPO3\CMS\Extbase\Domain\Model\Category>
+     * @var \TYPO3\CMS\Extbase\Persistence\ObjectStorage<Category>
      */
     protected $categories;
 
@@ -763,12 +762,15 @@ class Event extends AbstractEntity
         $this->categories->attach($category);
     }
 
-    /**
-     * @return $categories
-     */
-    public function getCategories()
+    public function getCategories(): array
     {
-        return $this->categories;
+        $categories = $this->categories->toArray();
+
+        usort($categories, function (Category $catA, Category $catB) {
+            return $catA->getSorting() <=> $catB->getSorting();
+        });
+
+        return $categories;
     }
 
     /**
diff --git a/Configuration/Extbase/Persistence/Classes.php b/Configuration/Extbase/Persistence/Classes.php
new file mode 100644
index 0000000..ff15775
--- /dev/null
+++ b/Configuration/Extbase/Persistence/Classes.php
@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+return [
+    \Wrm\Events\Domain\Model\Category::class => [
+        'tableName' => 'sys_category',
+    ],
+];
diff --git a/Configuration/TCA/Overrides/sys_category.php b/Configuration/TCA/Overrides/sys_category.php
new file mode 100644
index 0000000..4c79736
--- /dev/null
+++ b/Configuration/TCA/Overrides/sys_category.php
@@ -0,0 +1,16 @@
+<?php
+
+defined('TYPO3') or die();
+
+(function (string $extKey, string $table) {
+    \TYPO3\CMS\Core\Utility\ArrayUtility::mergeRecursiveWithOverrule($GLOBALS['TCA'][$table], [
+        'columns' => [
+            'sorting' => [
+                'config' => [
+                    // Allow extbase to map this column to model
+                    'type' => 'passthrough',
+                ],
+            ],
+        ],
+    ]);
+})('events', 'sys_category');