diff --git a/README.md b/README.md
index 93458ed..86b891f 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,11 @@
 # tracer
 
+ported to py3 from [selfsame/tracer](https://notabug.org/selfsame/tracer)
+
 irc tracery bot
 
 deps:
 * https://github.com/aparrish/pytracery
 
 edit channels and botnick to test somewhere in irc
+