diff --git a/README.md b/README.md
index 4c6b0c2..4458e1e 100644
--- a/README.md
+++ b/README.md
@@ -247,9 +247,9 @@ Its class must implement `FOQ\ElasticaBundle\Provider\ProviderInterface`.
             {
                 $loggerClosure('Indexing users');
 
-                $this->userType->addDocuments(array(
-                    array('username' => 'Bob')
-                ));
+                $document = new \Elastica_Document();
+                $document->setData(array('username' => 'Bob'));
+                $this->userType->addDocuments(array($document));
             }
         }