diff --git a/src/Resources/views/Admin/app.html.twig b/src/Resources/views/Admin/app.html.twig
index 8d812d63..2f325263 100644
--- a/src/Resources/views/Admin/app.html.twig
+++ b/src/Resources/views/Admin/app.html.twig
@@ -205,7 +205,7 @@
 
         editors.forEach(function (editor) {
             let tags = editor.dataset.tags.length === 0 ? [] : editor.dataset.tags.split(',')
-            let locale = editor.dataset.locale; // @TODO add fallback locale on the twig parameter locale ?
+            let locale = editor.dataset.locale | default(app.request.locale) | default(app.request.defaultLocale) | default(sylius_base_locale);
             setupRichEditor(editor, tags, locale);
         });