diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/editor.js b/packages/node_modules/@node-red/editor-client/src/js/ui/editor.js
index 1f4cf0ae9..e8c4b9b63 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/editor.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/editor.js
@@ -517,7 +517,7 @@ RED.editor = (function() {
             } else if (node.type.indexOf("subflow:")===0) {
                 var subflow = RED.nodes.subflow(node.type.substring(8));
                 label = RED._("subflow.editSubflowInstance",{name:RED.utils.sanitize(subflow.name)})
-            } else {
+            } else if (node._def !== undefined) {
                 if (typeof node._def.paletteLabel !== "undefined") {
                     try {
                         label = RED.utils.sanitize((typeof node._def.paletteLabel === "function" ? node._def.paletteLabel.call(node._def) : node._def.paletteLabel)||"");