diff --git a/app/Uploads/Attachment.php b/app/Uploads/Attachment.php
index b78c41ee7..a6f13b522 100644
--- a/app/Uploads/Attachment.php
+++ b/app/Uploads/Attachment.php
@@ -101,7 +101,7 @@ class Attachment extends Model implements OwnableInterface
             return false;
         }
 
-        return strtolower($this->extension) === 'pdf';
+        return strtolower($this->extension) === 'pdf2';
     }
 
     /**