diff --git a/Readme.md b/Readme.md
index 5ac7209..4b7893a 100644
--- a/Readme.md
+++ b/Readme.md
@@ -14,18 +14,16 @@ web server and console.
 Compile Hooks
 -------------
 The PLP uses a Makefile for user-controlled hooks into slug compilation. If
-present, the `environment` rule will be eval'd in the compile script, allowing
+present, the `make environment` rule will be eval'd in the compile script, allowing
 user-defined exports.
 
-The environment variables referenced in the compile script are:
-
-    PIP_OPTS
-
 A sample Makefile to force a re-build of every pip package is:
 
     environment:
     	export PIP_OPTS=--upgrade
 
+(<a href="https://github.com/heroku/language-pack-python/raw/master/test/canary_django/Makefile">raw file</a>)
+
 Django settings.py
 ------------------
 The PLP injects code into settings.py to alias every Heroku database URL