diff --git a/src/DTO/AdditionalDocument.php b/src/DTO/AdditionalDocument.php
index <HASH>..<HASH> 100644
--- a/src/DTO/AdditionalDocument.php
+++ b/src/DTO/AdditionalDocument.php
@@ -9,12 +9,14 @@ use PDFfiller\OAuth2\Client\Provider\Core\AbstractObject;
  * @package PDFfiller\OAuth2\Client\DTO
  *
  * @property string $document_request_notification
+ * @property string $name
  */
 class AdditionalDocument extends AbstractObject
 {
     /** @var array */
     protected $attributes = [
         'document_request_notification',
+        'name',
     ];
 
     /**
diff --git a/src/FillRequest.php b/src/FillRequest.php
index <HASH>..<HASH> 100644
--- a/src/FillRequest.php
+++ b/src/FillRequest.php
@@ -121,7 +121,10 @@ class FillRequest extends Model
         foreach ($this->additional_documents as $document) {
             /** @var AdditionalDocument $document */
             $array = $document->toArray();
-            $result['additional_documents'][] = $array['document_request_notification'];
+
+            $result['additional_documents'][] = isset($array['document_request_notification']) ?
+                $array['document_request_notification'] :
+                $array['name'];
         }
 
         return $result;
KSV | API-<I> | fixed additional document for l2f