diff --git a/README.md b/README.md
index fa561a1..c4ce210 100644
--- a/README.md
+++ b/README.md
@@ -13,11 +13,9 @@ The next version is mostly focused on adding missing essential features and port
 Suggestions / Planned features:
 
 - Line tool
-- Resize canvas
 - Resize sprite
 - Load palette from LPE file
 - Move colours in (advanced) palette editor
-- Duplicate layer
 - Symmetry options
 
 - Custom color picker
diff --git a/js/_layer.js b/js/_layer.js
index ca0f241..493aa12 100644
--- a/js/_layer.js
+++ b/js/_layer.js
@@ -463,7 +463,7 @@ function deleteLayer(saveHistory = true) {
 function duplicateLayer(event, saveHistory = true) {
     let layerIndex = layers.indexOf(currentLayer);
     let toDuplicate = currentLayer;
-    let menuEntries = layerList.childNodes
+    let menuEntries = layerList.children;
 
     // Increasing z-indexes of the layers above
     for (let i=getMenuEntryIndex(menuEntries, toDuplicate.menuEntry) - 1; i>0; i--) {