diff --git a/README.md b/README.md
index 8cf0545..749d59a 100644
--- a/README.md
+++ b/README.md
@@ -19,3 +19,5 @@ Use Conventional Commits. Do not push broken code.
 ## Maintenance
 
 All maintenance is recorded in `maintenance.md`.
+
+To list all known destinations, run `python3 nav.py --list`.