diff --git a/cores/arduino/SerialUSB.h b/cores/arduino/SerialUSB.h
index 442d28d0..be1377f8 100644
--- a/cores/arduino/SerialUSB.h
+++ b/cores/arduino/SerialUSB.h
@@ -19,6 +19,7 @@ class SerialUSB_ : public ZephyrSerial {
 
 	operator bool() override;
 	size_t write(const uint8_t *buffer, size_t size) override;
+	size_t write(const uint8_t data) override { return write(&data, 1); }
 	void flush() override;
 
 protected: