diff --git a/src/models/Attributes.php b/src/models/Attributes.php
index 832bd05..bb03f5d 100644
--- a/src/models/Attributes.php
+++ b/src/models/Attributes.php
@@ -11,11 +11,6 @@
  */
 class Attributes extends Markup
 {
-  /**
-   * @var string
-   */
-  public string $charset;
-
   /**
    * @var array
    */
@@ -29,7 +24,6 @@ class Attributes extends Markup
   public function __construct(array $values = [], string $charset = 'utf-8') {
     parent::__construct('', $charset);
 
-    $this->$charset = $charset;
     $this->values = $values;
   }