diff --git a/src/main.cpp b/src/main.cpp
index c4db76f2f7b0d996ccbc538d08a1c6b6387e6dc3..02eb78c408d65f1543763a146ab3542035cee71c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,14 +1,10 @@
 #include "config.h"
 #include "states.h"
-#include <Arduino_LoRaWAN_ttn.h>
-#include <lmic.h>
-#include <hal/hal.h>
-#include <SPI.h>
-#include <CayenneLPP.h>
 #include "power.h"
 #include "gps.h"
 #include "lora.h"
 #include "button.h"
+#include <CayenneLPP.h>
 
 int state;
 RTC_DATA_ATTR int bootCount = 0;
@@ -34,7 +30,7 @@ void printPayload() {
 static void bootInfo()
 {
     ++bootCount;
-    Serial.println("Boot number: " + String(bootCount));
+    Serial.printf("Boot number: %d\n", bootCount);
 
     esp_sleep_wakeup_cause_t wakeup_reason;
     wakeup_reason = esp_sleep_get_wakeup_cause();