diff --git a/js/world/geo.rkt b/js/world/geo.rkt
index 6f49485..ca6a126 100644
--- a/js/world/geo.rkt
+++ b/js/world/geo.rkt
@@ -20,7 +20,7 @@
         navigator.geolocation.clearWatch(watchId); }"))
 
 
-;; The new event handler type for geolocation:
+;; A new event handler type for geolocation:
 ;;
 ;; Use it as any other world handler:
 ;;