diff --git a/MQTT_IMPLEMENTATION.md b/MQTT_IMPLEMENTATION.md
index e4f534ba..4ec105f4 100644
--- a/MQTT_IMPLEMENTATION.md
+++ b/MQTT_IMPLEMENTATION.md
@@ -119,6 +119,7 @@ The MQTT bridge uses a slot-based architecture with up to 6 concurrent connectio
 | `ipnt.uk` | mqtt.ipnt.uk:443 | JWT (Ed25519) | WSS |
 | `flmesh` | mcmqtt.jntconnections.com:443 | JWT (Ed25519) | WSS |
 | `inwmesh` | scope.inwmesh.org:8883 | Username/password (per slot via `mqttN.username` / `mqttN.password`) | MQTT over TLS |
+| `rflab` | mqtt.rflab.io:443 | JWT (Ed25519) | WSS |
 | `custom` | User-configured | Username/Password | MQTT or WSS |
 | `none` | (disabled) | — | — |
 
diff --git a/src/helpers/MQTTPresets.h b/src/helpers/MQTTPresets.h
index d4c620cd..e372bf04 100644
--- a/src/helpers/MQTTPresets.h
+++ b/src/helpers/MQTTPresets.h
@@ -105,7 +105,7 @@ static const char ISRG_ROOT_X1[] PROGMEM =
     "-----END CERTIFICATE-----\n";
 
 // Number of built-in presets
-static const int MQTT_PRESET_COUNT = 24;
+static const int MQTT_PRESET_COUNT = 25;
 
 // Built-in preset definitions (stored in flash)
 static const MQTTPresetDef MQTT_PRESETS[MQTT_PRESET_COUNT] = {
@@ -132,6 +132,7 @@ static const MQTTPresetDef MQTT_PRESETS[MQTT_PRESET_COUNT] = {
     { "meshcore-fi",     "wss://mc-mqtt.meshcore.fi:443/",            "mc-mqtt.meshcore.fi",             ISRG_ROOT_X1,  MQTT_AUTH_JWT,      MQTT_TOPIC_MESHCORE,  0,       true,   55,      nullptr,     nullptr     },
     { "inwmesh",         "mqtts://scope.inwmesh.org:8883",            nullptr,                           ISRG_ROOT_X1,  MQTT_AUTH_USERPASS,  MQTT_TOPIC_MESHCORE,  0,       true,   55,      nullptr,     nullptr     },
     { "bostonmesh",      "wss://mqttmc01.bostonme.sh:443/mqtt",       "mqttmc01.bostonme.sh",            GTS_ROOT_R4,   MQTT_AUTH_JWT,      MQTT_TOPIC_MESHCORE,  0,       true,   55,      nullptr,     nullptr     },
+    { "rflab",           "wss://mqtt.rflab.io:443",                   "mqtt.rflab.io",                   ISRG_ROOT_X1,  MQTT_AUTH_JWT,      MQTT_TOPIC_MESHCORE,  0,       true,   55,      nullptr,     nullptr     },
     { "ipnt.uk",         "wss://mqtt.ipnt.uk:443",                    "mqtt.ipnt.uk",                    ISRG_ROOT_X1,  MQTT_AUTH_JWT,      MQTT_TOPIC_MESHCORE,  0,       true,   55,      nullptr,     nullptr     },
     { "flmesh",       "wss://mcmqtt.jntconnections.com:443",       "mcmqtt.jntconnections.com",       GTS_ROOT_R4,   MQTT_AUTH_JWT,      MQTT_TOPIC_MESHCORE,  0,       true,   55,      nullptr,     nullptr     },
 };