diff --git a/map/test/test.js b/map/test/test.js
index a2da0c3..d4d1c3a 100644
--- a/map/test/test.js
+++ b/map/test/test.js
@@ -1,5 +1,5 @@
 /*I made Map N38.913E139.909 and 15level!*/
-
+(() => {
 var mymap = L.map("mymap").setView([38.913, 139.909], 15);
 L.tileLayer('//{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',{
 	attribution:
@@ -20,3 +20,4 @@
     opacity: 0.5
 };
 var plobj = L.polyline(root, ste).addTo(mymap);
+})();