diff --git a/python/gunicorn/slack-desc b/python/gunicorn/slack-desc
index a887bc0d2c..30bd3264e3 100644
--- a/python/gunicorn/slack-desc
+++ b/python/gunicorn/slack-desc
@@ -1,3 +1,4 @@
+# HOW TO EDIT THIS FILE:
 # The "handy ruler" below makes it easier to edit a package description.
 # Line up the first '|' above the ':' following the base package name, and
 # the '|' on the right side marks the last column you can put a character in.