diff --git a/core/modules/telephone/lib/Drupal/telephone/Plugin/Field/FieldFormatter/TelephoneLinkFormatter.php b/core/modules/telephone/lib/Drupal/telephone/Plugin/Field/FieldFormatter/TelephoneLinkFormatter.php
index 436a4fc..5e035a8 100644
--- a/core/modules/telephone/lib/Drupal/telephone/Plugin/Field/FieldFormatter/TelephoneLinkFormatter.php
+++ b/core/modules/telephone/lib/Drupal/telephone/Plugin/Field/FieldFormatter/TelephoneLinkFormatter.php
@@ -74,6 +74,14 @@ public function viewElements(FieldItemListInterface $items) {
         '#href' => 'tel:' . rawurlencode(preg_replace('/\s+/', '', $item->value)),
         '#options' => array('external' => TRUE),
       );
+
+      if (!empty($item->_attributes)) {
+        $element[$delta]['#options'] += array('attributes' => array());
+        $element[$delta]['#options']['attributes'] += $item->_attributes;
+        // Unset field item attributes since they have been included in the
+        // formatter output and should not be rendered in the field template.
+        unset($item->_attributes);
+      }
     }
 
     return $element;