diff --git a/docs/topics/architecture.rst b/docs/topics/architecture.rst
index 4ac39ad2d..2effe94dc 100644
--- a/docs/topics/architecture.rst
+++ b/docs/topics/architecture.rst
@@ -172,5 +172,5 @@ links:
 
 .. _Twisted: https://twistedmatrix.com/trac/
 .. _Introduction to Deferreds in Twisted: https://twistedmatrix.com/documents/current/core/howto/defer-intro.html
-.. _Twisted - hello, asynchronous programming: http://jessenoller.com/2009/02/11/twisted-hello-asynchronous-programming/
+.. _Twisted - hello, asynchronous programming: http://jessenoller.com/blog/2009/02/11/twisted-hello-asynchronous-programming/
 .. _Twisted Introduction - Krondo: http://krondo.com/an-introduction-to-asynchronous-programming-and-twisted/