diff --git a/core/modules/file/templates/file-managed-file.html.twig b/core/modules/file/templates/file-managed-file.html.twig
index fdd2b3c..39de9b4 100644
--- a/core/modules/file/templates/file-managed-file.html.twig
+++ b/core/modules/file/templates/file-managed-file.html.twig
@@ -15,6 +15,7 @@
 {%
   set classes = [
     'js-form-managed-file',
+    'form-managed-file',
   ]
 %}
 <div{{ attributes.addClass(classes) }}>