--- a/src/Controller/QuickNodeCloneNodeAccess.php
+++ b/src/Controller/QuickNodeCloneNodeAccess.php
@@ -24,7 +24,7 @@
    *   If allowed, AccessResultAllowed isAllowed() will be TRUE. If forbidden,
    *   isForbidden() will be TRUE.
    */
-  public function cloneNode(AccountInterface $account, $node) {
+  public function cloneNode(AccountInterface $account, $node = NULL) {
     if (!$node instanceof ProductInterface && is_scalar($node)) {
       $node = Product::load((int) $node);
     }