diff --git a/src/Server/Transport/CallbackStream.php b/src/Server/Transport/CallbackStream.php
index 8552523..0b80edc 100644
--- a/src/Server/Transport/CallbackStream.php
+++ b/src/Server/Transport/CallbackStream.php
@@ -33,7 +33,7 @@
  *
  * @author Kyrian Obikwelu <koshnawaza@gmail.com>
  */
-final class CallbackStream implements StreamInterface
+final class CallbackStream implements \Stringable, StreamInterface
 {
     private bool $called = false;