diff --git a/Form/Type/FileUploadType.php b/Form/Type/FileUploadType.php
index 04d5afa6c0490e4601ce77c412997cde40a05980..96c64bd2a012d2f20176f360db9d554c008fd517 100644
--- a/Form/Type/FileUploadType.php
+++ b/Form/Type/FileUploadType.php
@@ -97,6 +97,7 @@ class FileUploadType extends AbstractType
         $this->buildWidgetView($view, $form, $options);
 
         $view->vars['widget_attr']['data-create-url'] = $this->router->generate('file_upload_create');
+        $view->vars['widget_attr']['data-required'] = $options['required'];
         $view->vars['multiple'] = $options['multiple'];
         if ($options['max_chunk_size'] > 0) {
             $view->vars['widget_attr']['data-max-chunk-size'] = $options['max_chunk_size'];