diff -u b/core/modules/system/templates/form-element.html.twig b/core/modules/system/templates/form-element.html.twig
--- b/core/modules/system/templates/form-element.html.twig
+++ b/core/modules/system/templates/form-element.html.twig
@@ -34,8 +34,8 @@
  *   - before: The description is output before the element.
  *   - after: The description is output after the element. This is the default
  *     value.
- *   - invisible: The description is output after the element, hidden visually but
- *     available to screen readers.
+ *   - invisible: The description is output after the element, hidden visually
+ *     but available to screen readers.
  *
  * @see template_preprocess_form_element()
  *