diff --git a/src/Loader/ElFinderLoader.php b/src/Loader/ElFinderLoader.php
index ff2feb7..6ef2842 100644
--- a/src/Loader/ElFinderLoader.php
+++ b/src/Loader/ElFinderLoader.php
@@ -19,7 +19,7 @@ class ElFinderLoader implements ElFinderLoaderInterface
 
     protected ElFinderBridge $bridge;
 
-    protected ?SessionInterface $session;
+    protected ?SessionInterface $session = null;
 
     public function __construct(ElFinderConfigurationProviderInterface $configurator)
     {