diff --git a/bin/phpyacc b/bin/phpyacc
index f92ae3d..1ff60dc 100755
--- a/bin/phpyacc
+++ b/bin/phpyacc
@@ -4,7 +4,7 @@ namespace PhpYacc;
 
 use PhpYacc\Grammar\Context;
 
-foreach (array(__DIR__ . '/../../autoload.php', __DIR__ . '/../vendor/autoload.php', __DIR__ . '/vendor/autoload.php') as $file) {
+foreach (array(__DIR__ . '/../../../autoload.php', __DIR__ . '/../../vendor/autoload.php', __DIR__ . '/../vendor/autoload.php') as $file) {
     if (file_exists($file)) {
         define('COMPOSER_INSTALL', $file);