diff --git a/ct/README b/ct/README
index 6ca2a97..1a3d959 100644
--- a/ct/README
+++ b/ct/README
@@ -1,2 +1,4 @@
-The code in this directory is from https://github.com/google/certificate-transparency/tree/master/go
+The code in this directory is based on Google's Certificiate Transparency Go library
+(originally at <https://github.com/google/certificate-transparency/tree/master/go>;
+now at <https://github.com/google/certificate-transparency-go>).
 See AUTHORS for the copyright holders, and LICENSE for the license.