diff --git a/README.md b/README.md
index eb02806..9e0632b 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,8 @@ You can see it in action at
 
 ![Example tweet](Screen Shot 2019-12-13.png?raw=true "Example tweet")
 
+This bot is written in Clojurescript, targeting Node.
+
 The bot uses the adsbexchange.com API to get aircraft data in
 realtime. It uses the Pelias front-end to OpenStreetMap and
 WhosOnFirst data to come up with some color description of the