diff --git a/core/modules/book/templates/book-navigation.html.twig b/core/modules/book/templates/book-navigation.html.twig
index f10a4e5..0f12980 100644
--- a/core/modules/book/templates/book-navigation.html.twig
+++ b/core/modules/book/templates/book-navigation.html.twig
@@ -31,7 +31,7 @@
  */
 #}
 {% if tree or has_links %}
-  <nav id="book-navigation-{{ book_id }}" role="navigation" aria-labelledby="book-label-{{ book_id }}">
+  <nav role="navigation" aria-labelledby="book-label-{{ book_id }}">
     {{ tree }}
     {% if has_links %}
       <h2>{{ 'Book traversal links for'|t }} {{ book_title }}</h2>