diff --git a/README.md b/README.md
index fe4caa3f..1fdd8b26 100644
--- a/README.md
+++ b/README.md
@@ -223,9 +223,10 @@ const server = new McpServer({
 // ... set up server resources, tools, and prompts ...
 
 const app = express();
+let transport: SSEServerTransport;
 
 app.get("/sse", async (req, res) => {
-  const transport = new SSEServerTransport("/messages", res);
+  transport = new SSEServerTransport("/messages", res);
   await server.connect(transport);
 });