diff --git a/ports/stm32/boards/PYBD_SF2/mpconfigboard.h b/ports/stm32/boards/PYBD_SF2/mpconfigboard.h
index 7d89e17cf4..57cc75efc6 100644
--- a/ports/stm32/boards/PYBD_SF2/mpconfigboard.h
+++ b/ports/stm32/boards/PYBD_SF2/mpconfigboard.h
@@ -39,6 +39,7 @@
 #define MICROPY_HW_ENABLE_USB       (1)
 #define MICROPY_HW_ENABLE_SDCARD    (1)
 #define MICROPY_HW_ENABLE_MMCARD    (1)
+#define MICROPY_HW_ENABLE_RF_SWITCH (1)
 
 #define MICROPY_BOARD_EARLY_INIT    board_early_init
 #define MICROPY_BOARD_ENTER_STOP    board_sleep(1);