diff --git a/app/Listeners/CreateWorkflowCheckFailedMessage.php b/app/Listeners/CreateWorkflowCheckFailedMessage.php
index 93a3102..3441039 100644
--- a/app/Listeners/CreateWorkflowCheckFailedMessage.php
+++ b/app/Listeners/CreateWorkflowCheckFailedMessage.php
@@ -49,7 +49,7 @@ class CreateWorkflowCheckFailedMessage implements ShouldQueue
             "您有一条【{$subjectTypeText}】未通过审核。",
             [$employee],
             [
-                'subject_type' => $subject->subject_type,
+                'subject_type' => $subject->getMorphClass(),
                 'subject' => $subject,
             ],
         );