diff --git a/core/includes/install.inc b/core/includes/install.inc
index c1e2193..d260774 100644
--- a/core/includes/install.inc
+++ b/core/includes/install.inc
@@ -550,15 +550,22 @@ function drupal_verify_profile($install_state) {
   $requirements = array();
 
   if (count($missing_modules)) {
-    $modules = array();
-    foreach ($missing_modules as $module) {
-      $modules[] = '<span class="admin-missing">' . Unicode::ucfirst($module) . '</span>';
-    }
+    $modules = array_map([Unicode::class, 'ucfirst'], $missing_modules);
+
+    $build = [
+      '#type' => 'inline_template',
+      '#template' => "
+{% for module in modules %}
+  <span class=\"admin-missing\">{{ module }}</span>{{ loop.last ? '' : ', ' }}
+{% endfor % }",
+      '#context' => ['modules' => $modules],
+    ];
+
     $requirements['required_modules'] = array(
       'title'       => t('Required modules'),
       'value'       => t('Required modules not found.'),
       'severity'    => REQUIREMENT_ERROR,
-      'description' => t('The following modules are required but were not found. Move them into the appropriate modules subdirectory, such as <em>/modules</em>. Missing modules: @modules', array('@modules' => implode(', ', $modules))),
+      'description' => t('The following modules are required but were not found. Move them into the appropriate modules subdirectory, such as <em>/modules</em>. Missing modules: @modules', array('@modules' => \Drupal::service('renderer')->renderPlain($build))),
     );
   }
   return $requirements;