diff --git a/src/platform/esp32/BleOta.h b/src/platform/esp32/BleOta.h
index 16ea45b84..f4c510920 100644
--- a/src/platform/esp32/BleOta.h
+++ b/src/platform/esp32/BleOta.h
@@ -1,6 +1,7 @@
 #ifndef BLEOTA_H
 #define BLEOTA_H
 
+#include <Arduino.h>
 #include <functional>
 
 class BleOta
diff --git a/src/platform/nrf52/NRF52Bluetooth.h b/src/platform/nrf52/NRF52Bluetooth.h
index 025e9e4c8..b4438ff39 100644
--- a/src/platform/nrf52/NRF52Bluetooth.h
+++ b/src/platform/nrf52/NRF52Bluetooth.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <Arduino.h>
+
 class NRF52Bluetooth
 {
   public: