diff --git a/src/Server/Transport/StdioTransport.php b/src/Server/Transport/StdioTransport.php
index ff83bbec..4da7f2a3 100644
--- a/src/Server/Transport/StdioTransport.php
+++ b/src/Server/Transport/StdioTransport.php
@@ -24,21 +24,16 @@
  */
 class StdioTransport extends BaseTransport
 {
-    private RunnerControlInterface $runnerControl;
-
     /**
-     * @param resource                $input
-     * @param resource                $output
-     * @param ?RunnerControlInterface $runnerControl
+     * @param resource $input
+     * @param resource $output
      */
     public function __construct(
         private $input = \STDIN,
         private $output = \STDOUT,
         ?LoggerInterface $logger = null,
-        /* ?RunnerControlInterface $runnerControl = null, */
+        private readonly RunnerControlInterface $runnerControl = new RunnerControl(),
     ) {
-        // $runnerControl parameter was added in 0.2.1 and will be default in 0.3.0
-        $this->runnerControl = \func_get_args()[3] ?? new RunnerControl();
         parent::__construct($logger);
     }