diff --git a/core/lib/Drupal/Core/Extension/ModuleUninstallValidatorInterface.php b/core/lib/Drupal/Core/Extension/ModuleUninstallValidatorInterface.php
index 7fcfebe..63599bb 100644
--- a/core/lib/Drupal/Core/Extension/ModuleUninstallValidatorInterface.php
+++ b/core/lib/Drupal/Core/Extension/ModuleUninstallValidatorInterface.php
@@ -41,7 +41,7 @@
    *   Each reason should not end with any punctuation since multiple reasons
    *   can be displayed together.
    *
-   * @see theme_system_modules_uninstall()
+   * @see template_preprocess_system_modules_uninstall()
    */
   public function validate($module);
 }
diff --git a/core/modules/system/system.admin.inc b/core/modules/system/system.admin.inc
index 27da4b2..939a736 100644
--- a/core/modules/system/system.admin.inc
+++ b/core/modules/system/system.admin.inc
@@ -277,7 +277,7 @@ function theme_system_modules_details($variables) {
 }
 
 /**
- * Prepares variables for the module uninstall template.
+ * Prepares variables for module uninstall templates.
  *
  * @param $variables
  *   An associative array containing:
@@ -289,7 +289,7 @@ function theme_system_modules_details($variables) {
  *     - description: A description of the module.
  *     - #required_by: (optional) A list of modules that require the module.
  *     - #validation_reasons: (optional) Additional reasons why the module
- *       cannot be disabled.
+ *       cannot be uninstalled.
  *     - #attributes: A list of attributes for the module wrapper.
  *
  * @ingroup themeable
@@ -314,7 +314,15 @@ function template_preprocess_system_modules_uninstall(&$variables) {
       $module['reasons_count'] = 0;
     }
     if (!empty($module['#required_by'])) {
-      $module['required_by'] = $module['#required_by'];
+      // @todo Remove early rendering and use safe_join in the Twig template
+      // once https://www.drupal.org/2579091 is fixed.
+      $renderer = \Drupal::service('renderer');
+      $required_by = [
+        '#theme' => 'item_list',
+        '#items' => $module['#required_by'],
+        '#context' => ['list_style' => 'comma-list'],
+      ];
+      $module['required_by'] = t('Required by @module-list', array('@module-list' => $renderer->render($required_by)));
       $module['reasons_count'] = $module['reasons_count'] + 1;
     }
     $module['attributes'] = new Attribute($module['#attributes']);
diff --git a/core/modules/system/templates/system-modules-uninstall.html.twig b/core/modules/system/templates/system-modules-uninstall.html.twig
index a56a113..b1a98bc 100644
--- a/core/modules/system/templates/system-modules-uninstall.html.twig
+++ b/core/modules/system/templates/system-modules-uninstall.html.twig
@@ -20,7 +20,6 @@
  * @ingroup themeable
  */
 #}
-
 {{ form.filters }}
 
 <table class="system-modules-uninstall">
@@ -61,7 +60,7 @@
                     <li>{{ reason }}</li>
                   {% endfor %}
                   {% if module.required_by %}
-                    <li>{{ 'Required by:'|t }} {{ module.required_by|safe_join(', ') }}</li>
+                    <li>{{ module.required_by }}</li>
                   {% endif %}
                 </ul>
               </div>