diff --git a/core/modules/field/lib/Drupal/field/Plugin/views/field/Field.php b/core/modules/field/lib/Drupal/field/Plugin/views/field/Field.php
index 541a08c..05f626c 100644
--- a/core/modules/field/lib/Drupal/field/Plugin/views/field/Field.php
+++ b/core/modules/field/lib/Drupal/field/Plugin/views/field/Field.php
@@ -858,11 +858,13 @@ function field_langcode(EntityInterface $entity) {
    *
    * Borrowed from field_ui.
    *
-   * @param string
+   * @param string $field_type
    *   (optional) The field type to get options for.
    *
    * @return array
    *   An array of formatter options.
+   *
+   * @see field_ui_formatter_options().
    */
   protected function formatterOptions($field_type = NULL) {
     if (!isset($this->formatterOptions)) {