diff --git a/app/Mail/AlarmNotification.php b/app/Mail/AlarmNotification.php
index 86a36954..4b5a59cd 100644
--- a/app/Mail/AlarmNotification.php
+++ b/app/Mail/AlarmNotification.php
@@ -14,7 +14,7 @@ class AlarmNotification extends Mailable
 
     protected string $message;
 
-    protected string $tablecontent;
+    protected array $tablecontent;
 
     /**
      * Create a new message instance.