diff --git a/Cake/Network/Request.php b/Cake/Network/Request.php
index ae79d92ec33..12b683210f9 100644
--- a/Cake/Network/Request.php
+++ b/Cake/Network/Request.php
@@ -326,7 +326,7 @@ protected static function _url($config) {
  * @link https://cakephp.lighthouseapp.com/projects/42648-cakephp/tickets/3318
  */
 	protected static function _base() {
-		$base = $dir = $webroot = null;
+		$base = $dir = $webroot = $baseUrl = null;
 		$config = Configure::read('App');
 		extract($config);