diff --git a/packages/node_modules/@node-red/nodes/core/network/10-mqtt.js b/packages/node_modules/@node-red/nodes/core/network/10-mqtt.js
index 9e6195b5d..dccf1310b 100644
--- a/packages/node_modules/@node-red/nodes/core/network/10-mqtt.js
+++ b/packages/node_modules/@node-red/nodes/core/network/10-mqtt.js
@@ -474,7 +474,6 @@ module.exports = function(RED) {
             setIfHasProperty(opts, node, "protocolVersion", init);
             setIfHasProperty(opts, node, "keepalive", init);
             setIfHasProperty(opts, node, "cleansession", init);
-            setIfHasProperty(opts, node, "sessionExpiry", init);
             setIfHasProperty(opts, node, "topicAliasMaximum", init);
             setIfHasProperty(opts, node, "maximumPacketSize", init);
             setIfHasProperty(opts, node, "receiveMaximum", init);
@@ -484,6 +483,11 @@ module.exports = function(RED) {
             } else if (hasProperty(opts, "userProps")) {
                 node.userProperties = opts.userProps;
             }
+            if (hasProperty(opts, "sessionExpiry")) {
+                node.sessionExpiryInterval = opts.sessionExpiry;
+            } else if (hasProperty(opts, "sessionExpiryInterval")) {
+                node.sessionExpiryInterval = opts.sessionExpiryInterval
+            }
 
             function createLWT(topic, payload, qos, retain, v5opts, v5SubPropName) {
                 let message = undefined;