diff --git a/packages/node_modules/@node-red/editor-client/src/js/nodes.js b/packages/node_modules/@node-red/editor-client/src/js/nodes.js
index 2874a024e..b940bfc32 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/nodes.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/nodes.js
@@ -1043,7 +1043,8 @@ RED.nodes = (function() {
             // Update the Subflow name to highlight that this is a copy
             const subflowNames = Object.keys(subflows).map(function (sfid) {
                 return subflows[sfid].name || "";
-            }).sort();
+            })
+            subflowNames.sort()
 
             let copyNumber = 1;
             let subflowName = sf.name;