diff --git a/README.md b/README.md
index 6bc9c9f..589be18 100644
--- a/README.md
+++ b/README.md
@@ -26,3 +26,6 @@ Uptime: 1 week, 6 days, 23 hours, 26 minutes
 
 To actually set your motd just write the output to `/etc/motd` or wherever your
 system stores it.
+
+If you'd like to specify a config file to use just pass in the path as the only
+argument.