diff --git a/Classes/Integration/FormEngine/ColumnPositionNode.php b/Classes/Integration/FormEngine/ColumnPositionNode.php
index a1b9a52bf..36f0fcada 100644
--- a/Classes/Integration/FormEngine/ColumnPositionNode.php
+++ b/Classes/Integration/FormEngine/ColumnPositionNode.php
@@ -17,7 +17,7 @@ class ColumnPositionNode extends AbstractNode implements NodeInterface
 {
     private array $parameters = [];
 
-    public function __construct(NodeFactory $nodeFactory, array $data)
+    public function __construct(NodeFactory $nodeFactory, array $data = [])
     {
         $this->parameters = $data;
     }
diff --git a/Classes/Integration/FormEngine/ContentTypeValidatorNode.php b/Classes/Integration/FormEngine/ContentTypeValidatorNode.php
index 9fffe9c36..9b73813d7 100644
--- a/Classes/Integration/FormEngine/ContentTypeValidatorNode.php
+++ b/Classes/Integration/FormEngine/ContentTypeValidatorNode.php
@@ -11,7 +11,7 @@ class ContentTypeValidatorNode extends AbstractNode implements NodeInterface
 {
     private array $parameters = [];
 
-    public function __construct(NodeFactory $nodeFactory, array $data)
+    public function __construct(NodeFactory $nodeFactory, array $data = [])
     {
         $this->parameters = $data;
     }
diff --git a/Classes/Integration/FormEngine/HtmlOutputNode.php b/Classes/Integration/FormEngine/HtmlOutputNode.php
index 62ba25208..c520e13af 100644
--- a/Classes/Integration/FormEngine/HtmlOutputNode.php
+++ b/Classes/Integration/FormEngine/HtmlOutputNode.php
@@ -17,7 +17,7 @@ class HtmlOutputNode extends AbstractNode implements NodeInterface
 {
     private array $parameters = [];
 
-    public function __construct(NodeFactory $nodeFactory, array $data)
+    public function __construct(NodeFactory $nodeFactory, array $data = [])
     {
         $this->parameters = $data;
     }
diff --git a/Classes/Integration/FormEngine/TemplateSourceDumperNode.php b/Classes/Integration/FormEngine/TemplateSourceDumperNode.php
index ec4199706..f37fc4c71 100644
--- a/Classes/Integration/FormEngine/TemplateSourceDumperNode.php
+++ b/Classes/Integration/FormEngine/TemplateSourceDumperNode.php
@@ -11,7 +11,7 @@ class TemplateSourceDumperNode extends AbstractNode implements NodeInterface
 {
     private array $parameters = [];
 
-    public function __construct(NodeFactory $nodeFactory, array $data)
+    public function __construct(NodeFactory $nodeFactory, array $data = [])
     {
         $this->parameters = $data;
     }