diff --git a/Models/CalendarMapper.php b/Models/CalendarMapper.php
index 0a2f553..5f53cc6 100644
--- a/Models/CalendarMapper.php
+++ b/Models/CalendarMapper.php
@@ -53,6 +53,11 @@ final class CalendarMapper extends DataMapperAbstract
      *
      * @var array<string, array<string, null|string>>
      * @since 1.0.0
+     */    /**
+     * Has many relation.
+     *
+     * @var array<string, array<string, string>>
+     * @since 1.0.0
      */
     protected static $hasMany = [
         'events' => [