diff --git a/ports/esp32/machine_sdcard.c b/ports/esp32/machine_sdcard.c
index 92c6e64698..93fc9e500b 100644
--- a/ports/esp32/machine_sdcard.c
+++ b/ports/esp32/machine_sdcard.c
@@ -297,6 +297,12 @@ static mp_obj_t machine_sdcard_make_new(const mp_obj_type_t *type, size_t n_args
         // it is a good idea to set the internal pull-ups anyway.
         // slot_config.flags = SDMMC_SLOT_FLAG_INTERNAL_PULLUP;
 
+        #if CONFIG_IDF_TARGET_ESP32S3
+        SET_CONFIG_PIN(slot_config, clk, ARG_sck);
+        SET_CONFIG_PIN(slot_config, cmd, ARG_mosi);
+        SET_CONFIG_PIN(slot_config, d0, ARG_miso);
+        #endif
+
         SET_CONFIG_PIN(slot_config, gpio_cd, ARG_cd);
         SET_CONFIG_PIN(slot_config, gpio_wp, ARG_wp);