diff --git a/typo3/sysext/install/Classes/FolderStructure/DefaultFactory.php b/typo3/sysext/install/Classes/FolderStructure/DefaultFactory.php
index 50edb28a6e86c7543c027fc0c54e392e57bdb335..c2441c2e7d19a5f61ab0f82fca7e7586e5685740 100644
--- a/typo3/sysext/install/Classes/FolderStructure/DefaultFactory.php
+++ b/typo3/sysext/install/Classes/FolderStructure/DefaultFactory.php
@@ -31,7 +31,7 @@ class DefaultFactory
      *
      * @return StructureFacadeInterface
      */
-    public function getStructure(WebserverType $webserverType)
+    public function getStructure(WebserverType $webserverType = WebserverType::Other)
     {
         $rootNode = new RootNode($this->getDefaultStructureDefinition($webserverType), null);
         return new StructureFacade($rootNode);