diff --git a/src/Classes/RenderNavItem.php b/src/Classes/RenderNavItem.php
index dd8512b..f5a5320 100644
--- a/src/Classes/RenderNavItem.php
+++ b/src/Classes/RenderNavItem.php
@@ -18,8 +18,8 @@ private static function anchorLink(
         string $target,
         string $link,
         string $label,
-        bool $wrap = false,
-        string $wrapClass = '',
+        ?bool $wrap = false,
+        ?string $wrapClass = '',
     ): string {
         // TODO: make this component based?
         // Then it's probably easier for users to further customize this?