diff --git a/bin/jetstream.php b/bin/jetstream.php
index c4075ff652..9764c38e51 100755
--- a/bin/jetstream.php
+++ b/bin/jetstream.php
@@ -23,16 +23,7 @@ if (php_sapi_name() !== 'cli') {
 }
 
 // Ensure that Jetstream.php is executed from the base path of the installation
-if (!file_exists('index.php') && (sizeof((array)$_SERVER['argv']) != 0)) {
-	$directory = dirname($_SERVER['argv'][0]);
-
-	if (substr($directory, 0, 1) != '/') {
-		$directory = $_SERVER['PWD'] . '/' . $directory;
-	}
-	$directory = realpath($directory . '/..');
-
-	chdir($directory);
-}
+chdir(dirname(__DIR__));
 
 require dirname(__DIR__) . '/vendor/autoload.php';