diff --git a/ports/stm32/cyw43_configport.h b/ports/stm32/cyw43_configport.h
index 666dfc43e2..9ad932509d 100644
--- a/ports/stm32/cyw43_configport.h
+++ b/ports/stm32/cyw43_configport.h
@@ -85,9 +85,12 @@
 
 #define CYW43_PIN_WL_REG_ON             pyb_pin_WL_REG_ON
 #define CYW43_PIN_WL_HOST_WAKE          pyb_pin_WL_HOST_WAKE
-#define CYW43_PIN_WL_RFSW_VDD           pyb_pin_WL_RFSW_VDD
 #define CYW43_PIN_WL_SDIO_1             pyb_pin_WL_SDIO_1
 
+#if MICROPY_HW_ENABLE_RF_SWITCH
+#define CYW43_PIN_WL_RFSW_VDD           pyb_pin_WL_RFSW_VDD
+#endif
+
 #define cyw43_schedule_internal_poll_dispatch(func) pendsv_schedule_dispatch(PENDSV_DISPATCH_CYW43, func)
 
 void cyw43_post_poll_hook(void);