diff --git a/Model/Config/Source/VirtualArrayArgumentList.php b/Model/Config/Source/VirtualArrayArgumentList.php
index 7059470..6189314 100644
--- a/Model/Config/Source/VirtualArrayArgumentList.php
+++ b/Model/Config/Source/VirtualArrayArgumentList.php
@@ -23,7 +23,7 @@ final class VirtualArrayArgumentList implements OptionSourceInterface
 
     private string $argumentName;
 
-    private array $options;
+    private array $options = [];
 
     public function __construct(
         ConfigInterface $objectManagerConfig,