diff --git a/src/Transports/HttpServerTransport.php b/src/Transports/HttpServerTransport.php
index 35d3323..f51db35 100644
--- a/src/Transports/HttpServerTransport.php
+++ b/src/Transports/HttpServerTransport.php
@@ -169,7 +169,7 @@ public function handleSseRequest(Request $request): StreamedResponse
             }
 
             $this->emit('client_disconnected', [$sessionId, 'SSE stream closed']);
-        }, [
+        }, headers: [
             'Content-Type' => 'text/event-stream',
             'Cache-Control' => 'no-cache',
             'Connection' => 'keep-alive',