diff --git a/content/en/docs/languages/php/instrumentation.md b/content/en/docs/languages/php/instrumentation.md
index 1ce29af16dd7..fa395b75b3d0 100644
--- a/content/en/docs/languages/php/instrumentation.md
+++ b/content/en/docs/languages/php/instrumentation.md
@@ -74,6 +74,7 @@ use Psr\Http\Message\ServerRequestInterface as Request;
 use Psr\Log\LogLevel;
 use Slim\Factory\AppFactory;
 use Monolog\Logger;
+use Monolog\Level;
 use Monolog\Handler\StreamHandler;
 
 require __DIR__ . '/vendor/autoload.php';
@@ -81,7 +82,7 @@ require __DIR__ . '/vendor/autoload.php';
 require('dice.php');
 
 $logger = new Logger('dice-server');
-$logger->pushHandler(new StreamHandler('php://stdout', Logger::INFO));
+$logger->pushHandler(new StreamHandler('php://stdout', Level::INFO));
 
 $app = AppFactory::create();