diff --git a/umap/static/umap/map.css b/umap/static/umap/map.css
index 483316e9..41e7977c 100644
--- a/umap/static/umap/map.css
+++ b/umap/static/umap/map.css
@@ -845,7 +845,7 @@ a.add-datalayer:before,
     float: left;
 }
 a.add-datalayer:before {
-    background-position: -45px -45px;
+    background-position: -20px -20px;
 }
 a.add-datalayer:hover,
 .leaflet-control-browse a.umap-browse-link:hover {