diff --git a/src/Symfony/Component/Form/FormInterface.php b/src/Symfony/Component/Form/FormInterface.php
index 5a852e864f..7a77e0f3f4 100644
--- a/src/Symfony/Component/Form/FormInterface.php
+++ b/src/Symfony/Component/Form/FormInterface.php
@@ -39,7 +39,7 @@ interface FormInterface extends \ArrayAccess, \Traversable, \Countable
     public function getParent();
 
     /**
-     * Adds a child to the form.
+     * Adds or replaces a child to the form.
      *
      * @param FormInterface|string|integer $child   The FormInterface instance or the name of the child.
      * @param string|null                  $type    The child's type, if a name was passed.