diff --git a/lib/merb-core/dispatch/session/cookie.rb b/lib/merb-core/dispatch/session/cookie.rb
index eb1048d..05bab1a 100644
--- a/lib/merb-core/dispatch/session/cookie.rb
+++ b/lib/merb-core/dispatch/session/cookie.rb
@@ -20,9 +20,7 @@ module Merb
     def finalize_session
       new_session = request.session.read_cookie

-      if @original_session != new_session
-        set_cookie(_session_id_key, new_session, Time.now + _session_expiry)
-      end
+      cookies.set_cookie(_session_id_key, new_session, Time.now + _session_expiry)
     end

     # ==== Returns