diff --git a/src/main.cpp b/src/main.cpp
index d3d80f2..526ab5d 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -93,7 +93,7 @@ void handleMqttMessage(char *topic, char *payload)
 {
   // Unused for now
 }
-void subscribeToIoTCallbacks()
+void mqttSubscribeCallback()
 {
   espmega.updateTimeFromNTP();
 }
@@ -165,7 +165,7 @@ void setup()
   Serial.print("boot_state.txt=\"MQTT Initializing . . .\"");
   sendStopBytes();
   espmega.iot->loadMqttConfig();
-  espmega.iot->registerSubscribeCallback(&subscribeToIoTCallbacks);
+  espmega.iot->registerSubscribeCallback(&mqttSubscribeCallback);
   espmega.iot->connectToMqtt();
   Serial.print("boot_state.txt=\"Display Initializing . . .\"");
   espmega.enableWebServer(80);
diff --git a/src/main.hpp b/src/main.hpp
index 48d9e98..6dbc3e0 100644
--- a/src/main.hpp
+++ b/src/main.hpp
@@ -49,6 +49,8 @@ void loop();
 
 void on_pin_change(uint8_t pin, uint8_t value);
 
+void mqttSubscribeCallback();
+
 uint16_t get_pm25_out();
 uint16_t get_pm25_in();
 float get_temp_out();