diff --git a/be/app/Mail/NewTask.php b/be/app/Mail/NewTask.php
index c9ec3e5..40777b0 100644
--- a/be/app/Mail/NewTask.php
+++ b/be/app/Mail/NewTask.php
@@ -28,7 +28,7 @@ class NewTask extends Mailable
     {
         $creator = \App\Models\User::find($subtask->created_by);
 
-        $usersInMasterTask = $subtask->mastertask->allUsersInMasterTask();
+        $usersInMasterTask = $subtask->mastertask->allUsersInMasterTask;
 
         $this->creator = $creator;
         $this->subtask = $subtask;