diff --git a/src/include/lwip/apps/mqtt.h b/src/include/lwip/apps/mqtt.h
index 70289903..3d3fcb74 100644
--- a/src/include/lwip/apps/mqtt.h
+++ b/src/include/lwip/apps/mqtt.h
@@ -46,6 +46,8 @@ extern "C" {
 
 typedef struct mqtt_client_t mqtt_client_t;
 
+#define MQTT_PORT 1883
+
 /*---------------------------------------------------------------------------------------------- */
 /* Connection with server */