diff --git a/variants/alfredo-nou3/pins_arduino.h b/variants/alfredo-nou3/pins_arduino.h
index 88bdbea0bb1..8b5a7d51b9f 100644
--- a/variants/alfredo-nou3/pins_arduino.h
+++ b/variants/alfredo-nou3/pins_arduino.h
@@ -1,6 +1,7 @@
 #ifndef Pins_Arduino_h
 #define Pins_Arduino_h
 
+#include <stdint.h>
 #define USB_VID          0xAFD0
 #define USB_PID          0x0003
 #define USB_MANUFACTURER "Alfredo"