diff --git a/framework/web/Controller.php b/framework/web/Controller.php
index 1f91fb9082..3535c0b4b6 100644
--- a/framework/web/Controller.php
+++ b/framework/web/Controller.php
@@ -14,9 +14,6 @@ use yii\helpers\Url;
 /**
  * Controller is the base class of web controllers.
  *
- * @property string $canonicalUrl The canonical URL of the currently requested page. This property is
- * read-only.
- *
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @since 2.0
  */