diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/view.js b/packages/node_modules/@node-red/editor-client/src/js/ui/view.js
index ff0091e65..d59c651d6 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/view.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/view.js
@@ -288,7 +288,7 @@ RED.view = (function() {
                 }
                 selectedLinks.clearUnselected()
             },
-            length: () => groups.length,
+            length: () => groups.size,
             forEach: (func) => { groups.forEach(func) },
             toArray: () => [...groups],
             clear: function () {