diff --git a/js/id/ui/lasso.js b/js/id/ui/lasso.js
index d57d64f02..3bc50dee7 100644
--- a/js/id/ui/lasso.js
+++ b/js/id/ui/lasso.js
@@ -1,4 +1,4 @@
-iD.ui.Lasso = function() {
+iD.ui.Lasso = function(context) {
 
     var box, group,
         a = [0, 0],