diff --git a/lib/WebDriver/LegacyWindow.php b/lib/WebDriver/LegacyWindow.php
index 97010a2..e641b9e 100644
--- a/lib/WebDriver/LegacyWindow.php
+++ b/lib/WebDriver/LegacyWindow.php
@@ -60,7 +60,7 @@ protected function obsoleteMethods()
      */
     public function __construct($url, $windowHandle = null)
     {
-        parent::__construct($url);
+        parent::__construct($url . '/' . $windowHandle);
 
         $this->windowHandle = $windowHandle;
     }