diff --git a/MenuItem.php b/MenuItem.php
index 3326c4e..9de8d48 100644
--- a/MenuItem.php
+++ b/MenuItem.php
@@ -8,7 +8,7 @@ class MenuItem extends AbstractItem {
 	/**
 	 * @var bool $is_active True if it is a link to the current page
 	 */
-	public bool $is_active;
+	public $is_active;
 
 	/**
 	 * Generate a menu item from a passed string