session.patch

diff --git a/lib/connect/middleware/session.js b/lib/connect/middleware/session.js
index a83cb16..7d1c17c 100644
--- a/lib/connect/middleware/session.js
+++ b/lib/connect/middleware/session.js
@@ -32,7 +32,7 @@ exports = module.exports = function sessionSetup(options){
     var key = options.key || 'connect.sid';
 
     // Default memory store
-    var store = options.store || new (require('./session/memory'));
+    var store = exports.store = options.store || new (require('./session/memory'));
 
     // Used to verify session ids / defaults to user agent
     var fingerprint = options.fingerprint || function fingerprint(req) {