1 files changed, 1 insertions, 1 deletions
diff --git a/main.js b/main.js
index 0f15ac9..cab07b7 100644
--- a/main.js
+++ b/main.js
@@ -3260,7 +3260,7 @@ const layerHierarchy = [
   const createLegend = function(ul, elem, classes) {
     const li = document.createElement('li');
     li.classList.add('list-group-item');
-    ul.append(li);
+    ul.appendChild(li);
 
     const t = document.createTextNode(elem.text);
     if (elem.layer === undefined) {