diff --git a/content/change-base-map.md b/content/change-base-map.md
index 4bd43b8..effc364 100644
--- a/content/change-base-map.md
+++ b/content/change-base-map.md
@@ -23,7 +23,7 @@ var Stadia_StamenTonerLite = L.tileLayer('https://tiles.stadiamaps.com/tiles/sta
 	minZoom: 0,
 	maxZoom: 20,
 	attribution: '&copy; <a href="https://www.stadiamaps.com/" target="_blank">Stadia Maps</a> &copy; <a href="https://www.stamen.com/" target="_blank">Stamen Design</a> &copy; <a href="https://openmaptiles.org/" target="_blank">OpenMapTiles</a> &copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors',
-	ext: 'png'
+	ext: 'png',
       scrollWheelZoom: false,
     }).addTo(mymap);
 ```