diff --git a/ports/broadcom/boards/raspberrypi_cm4io/mpconfigboard.h b/ports/broadcom/boards/raspberrypi_cm4io/mpconfigboard.h
index 9acfb32626..b0ebc091de 100644
--- a/ports/broadcom/boards/raspberrypi_cm4io/mpconfigboard.h
+++ b/ports/broadcom/boards/raspberrypi_cm4io/mpconfigboard.h
@@ -4,3 +4,6 @@
 #define DEFAULT_I2C_BUS_SDA         (&pin_GPIO2)
 
 #define MICROPY_HW_LED_STATUS       (&pin_GPIO42)
+
+#define CIRCUITPY_CONSOLE_UART_TX (&pin_GPIO14)
+#define CIRCUITPY_CONSOLE_UART_RX (&pin_GPIO15)