diff --git a/Models/Schedule.php b/Models/Schedule.php
index ab1f930..b64789f 100755
--- a/Models/Schedule.php
+++ b/Models/Schedule.php
@@ -34,7 +34,7 @@ class Schedule
      * @var int
      * @since 1.0.0
      */
-    private int $id = 0;
+    protected int $id = 0;
 
     /**
      * Calendar uid.