diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/palette-editor.js b/packages/node_modules/@node-red/editor-client/src/js/ui/palette-editor.js
index 4b36f671c..3ff3e7436 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/palette-editor.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/palette-editor.js
@@ -447,7 +447,7 @@ RED.palette.editor = (function() {
 
     function parseModuleList(list) {
         list = list || ["*"];
-        return list.map(rule => {
+        return list.map(function(rule) {
             var m = /^(.+?)(?:@(.*))?$/.exec(rule);
             var wildcardPos = m[1].indexOf("*");
             wildcardPos = wildcardPos===-1?Infinity:wildcardPos;