diff --git a/core/modules/locale/locale.admin.js b/core/modules/locale/locale.admin.js
index 1afad13..69236e7 100644
--- a/core/modules/locale/locale.admin.js
+++ b/core/modules/locale/locale.admin.js
@@ -60,7 +60,7 @@
           $tr.toggleClass('expanded');
 
           // Change screen reader text.
-          $tr.find('.update-description-prefix').text(function () {
+          $tr.find('.js-update-description-prefix').text(function () {
             if ($tr.hasClass('expanded')) {
               return Drupal.t('Hide description');
             }
diff --git a/core/modules/locale/templates/locale-translation-update-info.html.twig b/core/modules/locale/templates/locale-translation-update-info.html.twig
index 4391949..42f5508 100644
--- a/core/modules/locale/templates/locale-translation-update-info.html.twig
+++ b/core/modules/locale/templates/locale-translation-update-info.html.twig
@@ -19,7 +19,7 @@
  */
 #}
 <div tabindex="0" role="button">
-  <span>Show description</span>
+  <span class="js-update-description-prefix">Show description</span>
   {% if modules %}
     {% set module_list = modules|safe_join(', ') %}
     <span>{% trans %}Updates for: {{ module_list }}{% endtrans %}</span>
diff --git a/core/themes/classy/templates/locale-translation-update-info.html.twig b/core/themes/classy/templates/locale-translation-update-info.html.twig
index 15cb4ce..82d58ab 100644
--- a/core/themes/classy/templates/locale-translation-update-info.html.twig
+++ b/core/themes/classy/templates/locale-translation-update-info.html.twig
@@ -19,7 +19,7 @@
  */
 #}
 <div class="inner" tabindex="0" role="button">
-  <span class="update-description-prefix visually-hidden">Show description</span>
+  <span class="js-update-description-prefix visually-hidden">Show description</span>
   {% if modules %}
     {% set module_list = modules|safe_join(', ') %}
     <span class="text">{% trans %}Updates for: {{ module_list }}{% endtrans %}</span>