diff --git a/BuildbotPolicy.md b/BuildbotPolicy.md
index 21102b2..b15ea31 100644
--- a/BuildbotPolicy.md
+++ b/BuildbotPolicy.md
@@ -1,4 +1,4 @@
-There are two classes of builder: *Supported* and *Unsupported*.  The basic policy is that if a supported builder goes red then we fix it right away.
+There are two classes of builder for the [Tahoe Buildbot](http://allmydata.org/buildbot/): *Supported* and *Unsupported*.  The basic policy is that if a supported builder goes red then we fix it right away.
 
 1.  It could be we just committed a patch that breaks Tahoe in a way that makes a test fail on that builder.  In this case we either:
   1.   Revert that patch.