diff --git a/core/modules/content_translation/content_translation.admin.js b/core/modules/content_translation/content_translation.admin.js
index 0071b6ec996..2ca74966914 100644
--- a/core/modules/content_translation/content_translation.admin.js
+++ b/core/modules/content_translation/content_translation.admin.js
@@ -11,6 +11,9 @@
    * Forces applicable options to be checked as translatable.
    *
    * @type {Drupal~behavior}
+   *
+   * @prop {Drupal~behaviorAttach} attach
+   *   Attaches content translation dependent options to the UI.
    */
   Drupal.behaviors.contentTranslationDependentOptions = {
     attach: function (context) {
@@ -75,11 +78,14 @@
    * Makes field translatability inherit bundle translatability.
    *
    * @type {Drupal~behavior}
+   *
+   * @prop {Drupal~behaviorAttach} attach
+   *   Attaches content translation behavior.
    */
   Drupal.behaviors.contentTranslation = {
     attach: function (context) {
-      // Initially hide all field rows for non translatable bundles and all column
-      // rows for non translatable fields.
+      // Initially hide all field rows for non translatable bundles and all
+      // column rows for non translatable fields.
       $(context).find('table .bundle-settings .translatable :input').once('translation-entity-admin-hide').each(function () {
         var $input = $(this);
         var $bundleSettings = $input.closest('.bundle-settings');