diff --git a/lib/Doctrine/ORM/UnitOfWork.php b/lib/Doctrine/ORM/UnitOfWork.php
index 13e329c51..5c943297d 100644
--- a/lib/Doctrine/ORM/UnitOfWork.php
+++ b/lib/Doctrine/ORM/UnitOfWork.php
@@ -2390,7 +2390,7 @@ class UnitOfWork implements PropertyChangedListener
             $this->visitedCollections =
             $this->orphanRemovals = array();
         } else {
-            $this->clearIdentityMap($entityName);
+            $this->clearIdentityMapForEntityName($entityName);
             $this->clearEntityInsertions($entityName);
         }
 
@@ -3456,9 +3456,9 @@ class UnitOfWork implements PropertyChangedListener
     }
 
     /**
-     * @param $entityName
+     * @param string $entityName
      */
-    private function clearIdentityMap($entityName)
+    private function clearIdentityMapForEntityName($entityName)
     {
         $visited = array();