diff --git a/src/Mapper/XmlModelMapper.php b/src/Mapper/XmlModelMapper.php
index 7df5401..80bdec9 100644
--- a/src/Mapper/XmlModelMapper.php
+++ b/src/Mapper/XmlModelMapper.php
@@ -399,7 +399,7 @@ protected function createDomNode(\DOMDocument $domDocument, string $name, $value
      */
     protected function mapPropertyByType(ModelPropertyType $propertyType, $value) {
         $value = Iteration::typeFilter($value);
-        if($propertyType->getActualType() === TypeEnum::ARRAY && !is_array($value) ) {
+        if($propertyType->getActualType() === TypeEnum::ARRAY && !is_array($value) && !is_null($value)) {
             $value = [$value];
         }