diff --git a/core/modules/book/book.admin.inc b/core/modules/book/book.admin.inc
index 024adc9..67f4c51 100644
--- a/core/modules/book/book.admin.inc
+++ b/core/modules/book/book.admin.inc
@@ -49,7 +49,7 @@ function book_admin_overview() {
  *   An associative array containing:
  *   - form: A render element representing the form.
  *
- * @see book_admin_table()
+ * @see \Drupal\book\Form\BookAdminEditForm::bookAdminTable()
  * @ingroup themeable
  */
 function theme_book_admin_table($variables) {
diff --git a/core/modules/book/book.module b/core/modules/book/book.module
index 56aa508..7ce87f2 100644
--- a/core/modules/book/book.module
+++ b/core/modules/book/book.module
@@ -450,7 +450,7 @@ function _book_add_form_elements(&$form, &$form_state, EntityInterface $node) {
 
   $form['book']['plid'] = _book_parent_select($node->book);
 
-  // @see _book_admin_table_tree(). The weight may be larger than 15.
+  // @see \Drupal\book\Form\BookAdminEditForm::bookAdminTableTree(). The weight may be larger than 15.
   $form['book']['weight'] = array(
     '#type' => 'weight',
     '#title' => t('Weight'),