diff --git a/pkgs/maps/tiles.fnl b/pkgs/maps/tiles.fnl
index 7defc3e..d3a6688 100644
--- a/pkgs/maps/tiles.fnl
+++ b/pkgs/maps/tiles.fnl
@@ -46,10 +46,10 @@
 
 (fn overpass [lat lon zoom]
   (let [width (/ 360 (^ 2 zoom))
-        n (+ lat width)                 ;XXX adjust for latitude
-        w (- lon width)
-        s lat
-        e lon]
+        n lat
+        w lon
+        s (- lat width)
+        e (+ lon width)]
     (->
      [
       "[out:json];"