diff --git a/src/Entity/DocumentObject.php b/src/Entity/DocumentObject.php
index 171cf58..ecaffa0 100644
--- a/src/Entity/DocumentObject.php
+++ b/src/Entity/DocumentObject.php
@@ -30,6 +30,9 @@ use Vich\UploaderBundle\Mapping\Annotation as Vich;
         new Get(),
         new GetCollection(),
         new Post(
+            formats: [
+                'multipart' => ['multipart/form-data']
+            ],
             controller: CreateDocumentObjectAction::class,
             openapi: new Model\Operation(
                 requestBody: new Model\RequestBody(