diff --git a/core/lib/Drupal/Core/Render/Element/SystemCompactLink.php b/core/lib/Drupal/Core/Render/Element/SystemCompactLink.php
index bd8d73e..501dc4b 100644
--- a/core/lib/Drupal/Core/Render/Element/SystemCompactLink.php
+++ b/core/lib/Drupal/Core/Render/Element/SystemCompactLink.php
@@ -59,7 +59,7 @@ public static function preRenderCompactLink($element) {
       $element['#title'] = t('Show descriptions');
       $element['#href'] = 'admin/compact/off';
       $element['#options'] = array(
-        'title' => t('Expand layout to include descriptions.'),
+        'attributes' => array('title' => t('Expand layout to include descriptions.')),
         'query' => drupal_get_destination(),
       );
     }
@@ -67,7 +67,7 @@ public static function preRenderCompactLink($element) {
       $element['#title'] = t('Hide descriptions');
       $element['#href'] = 'admin/compact/on';
       $element['#options'] = array(
-        'title' => t('Compress layout by hiding descriptions.'),
+        'attributes' => array('title' => t('Compress layout by hiding descriptions.')),
         'query' => drupal_get_destination(),
       );
     }