diff --git a/Result/DocumentIterator.php b/Result/DocumentIterator.php
index 7665fe9f..bc767930 100644
--- a/Result/DocumentIterator.php
+++ b/Result/DocumentIterator.php
@@ -41,6 +41,6 @@ protected function convertDocument(array $raw)
         $data = $raw['_source'] ?? $raw['_fields'] ?? null;
         $data['_id'] = $raw['_id'] ?? null;
 
-        return $this->getConverter()->convertArrayToDocument($this->getIndex()->getNamespace(), array_filter($data));
+        return $this->getConverter()->convertArrayToDocument($this->getIndex()->getNamespace(), $data);
     }
 }