diff --git a/core/modules/views/views.theme.inc b/core/modules/views/views.theme.inc
index 2018d97..331be4b 100644
--- a/core/modules/views/views.theme.inc
+++ b/core/modules/views/views.theme.inc
@@ -517,7 +517,11 @@ function template_preprocess_views_view_table(&$variables) {
       if ($variables['header'][$field]['content']) {
         $element_label_type = $fields[$field]->elementLabelType(TRUE, TRUE);
         if ($element_label_type) {
-          $variables['header'][$field]['content'] = '<' . $element_label_type . '>' . $variables['header'][$field]['content'] . '</' . $element_label_type . '>';
+          $variables['header'][$field]['content'] = array(
+            '#type' => 'html_tag',
+            '#tag' => $element_label_type,
+            '#value' => $variables['header'][$field]['content'],
+          );
         }
         // Improves accessibility of complex tables.
         $variables['header'][$field]['attributes']['id'] = Html::getUniqueId('view-' . $field . '-table-column');