diff --git a/MenuItem.php b/MenuItem.php
index 76daf4e..87a9f56 100644
--- a/MenuItem.php
+++ b/MenuItem.php
@@ -62,7 +62,7 @@ class MenuItem extends AbstractItem {
 		}
 		// Add namespace of the target child page, unless the special value "_main" has been used
 		// "_main" is used to generate a link back to the main parent page
-		if ( $this->type !== '_main' ) {
+		if ( $type !== '_main' ) {
 			$target_path[] = $type;
 		}
 		$this->id = implode(':', array_merge($target_path, $page_path));