diff --git a/index.php b/index.php
index 4ad662a..8acb04b 100644
--- a/index.php
+++ b/index.php
@@ -4,7 +4,7 @@ if($_SERVER["REQUEST_URI"] == '/metrics') {
     header('Content-Type: text/plain; version=0.0.4');
     $config = getenv('CONFIG_FILE');
     $phpbin = getenv('PHP_BINARY');
-    $output = shell_exec('CONFIG_FILE="' . $config . '" ' . $phpbin . ' ' . $_SERVER['DOCUMENT_ROOT'] . 'script.php');
+    $output = shell_exec('CONFIG_FILE="' . $config . '" ' . $phpbin . ' ' . $_SERVER['DOCUMENT_ROOT'] . '/script.php');
     echo $output;
 } elseif ($_SERVER["REQUEST_URI"] == '/config') {
     header('Content-Type: application/json');