diff --git a/src/App.php b/src/App.php
index ff118ac725..2acb7eb362 100644
--- a/src/App.php
+++ b/src/App.php
@@ -505,6 +505,7 @@ class App
 		$relative_script_path = defaults($_SERVER, 'REDIRECT_URI'       , $relative_script_path);
 		$relative_script_path = defaults($_SERVER, 'REDIRECT_SCRIPT_URL', $relative_script_path);
 		$relative_script_path = defaults($_SERVER, 'SCRIPT_URL'         , $relative_script_path);
+		$relative_script_path = defaults($_SERVER, 'REQUEST_URI'        , $relative_script_path);
 
 		$this->urlPath = $this->getConfigValue('system', 'urlpath');