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 fa262d0c5..30c329c41 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
@@ -157,6 +157,12 @@ RED.editor = (function() {
             }
         }
         if (valid && "validate" in definition[property]) {
+            if (definition[property].hasOwnProperty("required") &&
+                definition[property].required === false) {
+                if (value === "") {
+                    return true;
+                }
+            }
             try {
                 var opt = {};
                 if (label) {
@@ -183,6 +189,11 @@ RED.editor = (function() {
                 });
             }
         } else if (valid) {
+            if (definition[property].hasOwnProperty("required") && definition[property].required === false) {
+                if (value === "") {
+                    return true;
+                }
+            }
             // If the validator is not provided in node property => Check if the input has a validator
             if ("category" in node._def) {
                 const isConfig = node._def.category === "config";