diff --git a/core/modules/user/user.module b/core/modules/user/user.module
index 828559627c5363962f0be711c4825a1f30647d14..7856dfa77040fa864decaba41e1d6e77e46ac059 100644
--- a/core/modules/user/user.module
+++ b/core/modules/user/user.module
@@ -509,8 +509,7 @@ function user_user_view(array &$build, UserInterface $account, EntityViewDisplay
   if ($display->getComponent('member_for')) {
     $build['member_for'] = array(
       '#type' => 'item',
-      '#title' => t('Member for'),
-      '#markup' => format_interval(REQUEST_TIME - $account->getCreatedTime()),
+      '#markup' => '<h4 class="label">' . t('Member for') . '</h4> ' . format_interval(REQUEST_TIME - $account->getCreatedTime()),
     );
   }
 }