diff --git a/src/drivers/TwiMaster.h b/src/drivers/TwiMaster.h
index cc0b6f02..399e3d0f 100644
--- a/src/drivers/TwiMaster.h
+++ b/src/drivers/TwiMaster.h
@@ -1,6 +1,8 @@
 #pragma once
 #include <FreeRTOS.h>
 #include <semphr.h>
+#include <drivers/include/nrfx_twi.h> // NRF_TWIM_Type
+#include <cstdint>
 
 namespace Pinetime {
   namespace Drivers {