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 f7b61f3a6..e3df86f6c 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
@@ -2336,12 +2336,14 @@ RED.nodes = (function() {
 
                             // The node declares outputs in its defaults, but has not got a valid value
                             // Defer to the length of the wires array
-                            if (isNaN(node.outputs)) {
-                                node.outputs = node.wires.length;
-                            } else if (node.wires.length > node.outputs) {
-                                // If 'wires' is longer than outputs, clip wires
-                                console.log("Warning: node.wires longer than node.outputs - trimming wires:", node.id, " wires:", node.wires.length, " outputs:", node.outputs);
-                                node.wires = node.wires.slice(0, node.outputs);
+                            if (node.hasOwnProperty('wires'))
+                                if (isNaN(node.outputs)) {
+                                    node.outputs = node.wires.length;
+                                } else if (node.wires.length > node.outputs) {
+                                    // If 'wires' is longer than outputs, clip wires
+                                    console.log("Warning: node.wires longer than node.outputs - trimming wires:", node.id, " wires:", node.wires.length, " outputs:", node.outputs);
+                                    node.wires = node.wires.slice(0, node.outputs);
+                                }
                             }
 
                             for (d in node._def.defaults) {