diff --git a/Sitemap.php b/Sitemap.php
index 733a60a..03d4fc6 100644
--- a/Sitemap.php
+++ b/Sitemap.php
@@ -94,7 +94,7 @@ public function __construct($filePath)
      */
     public function getWrittenFilePath()
     {
-        return $writtenFilePaths;
+        return $this->writtenFilePaths;
     }
     
     /**