diff --git a/web/modules/custom/example/src/Builder/PostBuilder.php b/web/modules/custom/example/src/Builder/PostBuilder.php
index 88508d9..addd814 100644
--- a/web/modules/custom/example/src/Builder/PostBuilder.php
+++ b/web/modules/custom/example/src/Builder/PostBuilder.php
@@ -8,7 +8,7 @@ use Drupal\node\NodeInterface;
 
 final class PostBuilder {
 
-  private ?DrupalDateTime $created;
+  private ?DrupalDateTime $created = NULL;
 
   private string $title;