diff --git a/http-state.js b/http-state.js
index 476cc4a..71755d6 100644
--- a/http-state.js
+++ b/http-state.js
@@ -20,7 +20,7 @@ var idgen = require('./idgen');
                                res.set_cookie("session_id", session_id);
                        }
                        sessions[session_id] = (sessions[session_id] || {
-                               session: {},
+                               session: {session_id:session_id},
                                touch: function() {
                                        this.expiration = (+ new Date) + (options.duration || 30*60*1000);
                                        return this;