diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index e8f896c61b3474a592a1303275230dab070e6b1f..2ba46273496bcf566ce6d271f320521b6ef570d8 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1145,7 +1145,7 @@ static void mmc_process_ext_csds(struct mmc_host *host)
 
 			mmc_card_set_highspeed(card);
 
-			host->ios.timing = MMC_TIMING_SD_HS;
+			host->ios.timing = MMC_TIMING_MMC_HS;
 			mmc_set_ios(host);
 		}