diff --git a/lib/Doctrine/ORM/UnitOfWork.php b/lib/Doctrine/ORM/UnitOfWork.php
index 1d2919611..cd1f69bf4 100644
--- a/lib/Doctrine/ORM/UnitOfWork.php
+++ b/lib/Doctrine/ORM/UnitOfWork.php
@@ -524,7 +524,7 @@ class UnitOfWork implements PropertyChangedListener
         $invoke = $this->listenersInvoker->getSubscribedSystems($class, Events::preFlush);
 
         if ($invoke !== ListenersInvoker::INVOKE_NONE) {
-            $this->listenersInvoker->invoke($class, Events::preFlush, $entity, new PreFlushEventArgs($entity, $this->em), $invoke);
+            $this->listenersInvoker->invoke($class, Events::preFlush, $entity, new PreFlushEventArgs($this->em), $invoke);
         }
 
         $actualData = array();