diff --git a/pkgs/maps/main.fnl b/pkgs/maps/main.fnl
index a8edd98..656909c 100644
--- a/pkgs/maps/main.fnl
+++ b/pkgs/maps/main.fnl
@@ -180,8 +180,8 @@ label.readout {
 
 (var map-surface nil)
 
-(fn draw-onto-map-surface [surface lat lon zoom]
-  (let [{ : num-tiles-x : num-tiles-y &as bounds } (map-bounds lat lon zoom)
+(fn draw-onto-map-surface [surface bounds zoom]
+  (let [{ : num-tiles-x : num-tiles-y } bounds
         road-width 14
         lines []]
 
@@ -244,7 +244,7 @@ label.readout {
                   cairo.Content.COLOR
                   (* tile-size bounds.num-tiles-x)
                   (* tile-size bounds.num-tiles-y))
-               (draw-onto-map-surface lat lon zoom)))))
+               (draw-onto-map-surface bounds zoom)))))
 
     (g:set_source_surface map-surface (- offset-x) (- offset-y))
     (g:set_operator cairo.Operator.SOURCE)