diff --git a/components/drivers/include/drivers/mmcsd_card.h b/components/drivers/include/drivers/mmcsd_card.h
index 6d86760a78..dc70fdb46a 100644
--- a/components/drivers/include/drivers/mmcsd_card.h
+++ b/components/drivers/include/drivers/mmcsd_card.h
@@ -110,7 +110,7 @@ union rt_sd_status {
         rt_uint32_t : 7;
         rt_uint32_t secured_mode: 1;
         rt_uint32_t data_bus_width: 2;
-    };
+    } fields;
 };
 
 /*
diff --git a/components/drivers/sdio/dev_sd.c b/components/drivers/sdio/dev_sd.c
index d0193bdd1d..3d6dcd9512 100644
--- a/components/drivers/sdio/dev_sd.c
+++ b/components/drivers/sdio/dev_sd.c
@@ -744,7 +744,7 @@ static rt_int32_t mmcsd_sd_init_card(struct rt_mmcsd_host *host,
     err = mmcsd_read_sd_status(card, sd_status.status_words);
     if (err)
         goto err1;
-    if ((sd_status.uhs_speed_grade > 0) && (ocr & VDD_165_195))
+    if ((sd_status.fields.uhs_speed_grade > 0) && (ocr & VDD_165_195))
     {
         /* Assume the card supports all UHS-I modes because we cannot find any mainstreaming card
          * that can support only part of the following modes.