diff --git a/umap/static/umap/map.css b/umap/static/umap/map.css
index 795b6914..7012e142 100644
--- a/umap/static/umap/map.css
+++ b/umap/static/umap/map.css
@@ -1230,6 +1230,7 @@ a.add-datalayer:hover,
     width: 16px;
 }
 .umap-ball-icon.umap-icon-active .icon_container {
+    border-radius: 10px 10px 10px 10px;
     box-shadow: 1px 23px 6px -3px white;
     margin-left: -2px;
     margin-top: -4px;