diff --git a/js/id/renderer/map.js b/js/id/renderer/map.js
index ef101dbc7..af828b49d 100644
--- a/js/id/renderer/map.js
+++ b/js/id/renderer/map.js
@@ -43,7 +43,7 @@ iD.Map = function(context) {
                 }
             }, true)
             .on('mouseup.zoom', function() {
-                if (resetTransform) redraw();
+                if (resetTransform()) redraw();
             })
             .attr('id', 'surface')
             .call(iD.svg.Surface());