diff --git a/core/modules/system/system.install b/core/modules/system/system.install
index f38af8a..ba36772 100644
--- a/core/modules/system/system.install
+++ b/core/modules/system/system.install
@@ -447,11 +447,9 @@ function system_requirements($phase) {
       'title' => t('Cron maintenance tasks'),
       'severity' => $severity,
       'value' => $summary,
-      // @todo This string is concatenated from t() calls, safe drupal_render()
-      //   output, whitespace, and <br /> tags, so is safe. However, as a best
-      //   practice, we should not use SafeMarkup::set() around a variable. Fix
-      //   in: https://www.drupal.org/node/2296929.
-      'description' => SafeMarkup::set($description),
+      // This string is concatenated from t() calls, drupal_render() output,
+      // whitespace, and <br> tags so we pass it through as markup.
+      'description' => ['#markup' => $description],
     );
   }
   if ($phase != 'install') {