diff --git a/core/lib/Drupal/Core/Template/TwigExtension.php b/core/lib/Drupal/Core/Template/TwigExtension.php
index de7aad9..c19f867 100644
--- a/core/lib/Drupal/Core/Template/TwigExtension.php
+++ b/core/lib/Drupal/Core/Template/TwigExtension.php
@@ -134,7 +134,7 @@ public function getFunctions() {
       new \Twig_SimpleFunction('attach_library', [$this, 'attachLibrary']),
       new \Twig_SimpleFunction('active_theme_path', [$this, 'getActiveThemePath']),
       new \Twig_SimpleFunction('active_theme', [$this, 'getActiveTheme']),
-      new \Twig_SimpleFunction('addAttributes', [$this, 'addAttributes']),
+      new \Twig_SimpleFunction('add_attribute', [$this, 'addAttribute']),
     ];
   }
 
@@ -265,7 +265,7 @@ public function getLink($text, $url, $attributes = []) {
     if (!$url instanceof Url) {
       $url = Url::fromUri($url);
     }
-    if ($attributes) {
+    if ($attributesAttribute) {
       if ($attributes instanceof Attribute) {
         $attributes = $attributes->toArray();
       }
@@ -596,19 +596,15 @@ public function safeJoin(\Twig_Environment $env, $value, $glue = '') {
   }
 
   /**
-   * Create an Attribute object from an array.
+   * Creates a \Drupal\Core\Template\Attribute object.
    *
-   * @param array $attributes
-   *   Array (key, value) for attributes.
+   *  @param array $attributes
+   *   An associative array of key-value pairs to be converted to attributes.
    *
-   * @return Attribute
+   * @return \Drupal\Core\Template\Attribute
    *   An Attribute object.
    */
-  public function addAttributes($attributes = array()) {
-    if (!empty($attributes)) {
-      foreach ($attributes as $attribute){
-        new Attribute($attribute);
-      }
-    }
+  public function addAttribute(array $attributes = []) {
+    return new Attribute($attributes);
   }
 }