diff --git a/RX_FSK/src/mqtt.cpp b/RX_FSK/src/mqtt.cpp
index e8cf97e..b5a7cda 100644
--- a/RX_FSK/src/mqtt.cpp
+++ b/RX_FSK/src/mqtt.cpp
@@ -58,7 +58,7 @@ void MQTT::publishUptime()
     if( !isnan(sonde.config.rxlat) && !isnan(sonde.config.rxlon) ) {
         snprintf(payload, 256, "%s\"rxlat\": %.5f, \"rxlon\": %.5f, ", payload, sonde.config.rxlat, sonde.config.rxlon);
     }
-    snprintf(payload, 256, "%s\"sw\": \"%s\", \"ver\": \"%s\"}", version_name, version_id);
+    snprintf(payload, 256, "%s\"sw\": \"%s\", \"ver\": \"%s\"}", payload, version_name, version_id);
     Serial.println(payload);
     char topic[128];
     snprintf(topic, 128, "%s%s", this->prefix, "uptime");