diff --git a/app/views/posts/index.haml b/app/views/posts/index.haml
index ad07b9d..90d6567 100644
--- a/app/views/posts/index.haml
+++ b/app/views/posts/index.haml
@@ -67,6 +67,7 @@
       %h2= t('posts.empty')
     - else
       = form_tag site_posts_reorder_path, method: :post do
+        %input{ type: 'hidden', name: 'post[lang]', value: @locale }
         %table.table{ data: { controller: 'reorder' } }
           %caption.sr-only= t('posts.caption')
           %thead