diff --git a/lib/Doctrine/ORM/UnitOfWork.php b/lib/Doctrine/ORM/UnitOfWork.php
index d3cad211c..c5c690e1c 100644
--- a/lib/Doctrine/ORM/UnitOfWork.php
+++ b/lib/Doctrine/ORM/UnitOfWork.php
@@ -398,6 +398,8 @@ class UnitOfWork implements PropertyChangedListener
      * If a PersistentCollection has been de-referenced in a fully MANAGED entity,
      * then this collection is marked for deletion.
      *
+     * @ignore
+     * @internal Don't call from the outside.
      * @param ClassMetadata $class The class descriptor of the entity.
      * @param object $entity The entity for which to compute the changes.
      */