diff --git a/Extending/Plugins.md b/Extending/Plugins.md
index 3a04456..86d17a3 100644
--- a/Extending/Plugins.md
+++ b/Extending/Plugins.md
@@ -3,7 +3,7 @@
 # Introduction
 
 A plugin is essentially a way to use external code in a build definition.
-A plugin can be a library used to implement a task.  For example, you might use [Knockoff](http://tristanhunt.com/projects/knockoff/) to write a markdown processing task.
+A plugin can be a library used to implement a task.  For example, you might use [Knockoff](https://github.com/tristanjuricek/knockoff/) to write a markdown processing task.
 A plugin can define a sequence of sbt Settings that are automatically added to all projects or that are explicitly declared for selected projects.
 For example, a plugin might add a 'proguard' task and associated (overridable) settings.
 Because [[Commands]] can be added with the `commands` setting, a plugin can also fulfill the role that processors did in 0.7.x.