diff --git a/libraries/SD_MMC/src/SD_MMC.cpp b/libraries/SD_MMC/src/SD_MMC.cpp
index 2f36eee7e42..99e2d80ae20 100644
--- a/libraries/SD_MMC/src/SD_MMC.cpp
+++ b/libraries/SD_MMC/src/SD_MMC.cpp
@@ -50,6 +50,7 @@ bool SDMMCFS::begin(const char * mountpoint, bool mode1bit)
         .init = &sdmmc_host_init,
         .set_bus_width = &sdmmc_host_set_bus_width,
         .get_bus_width = &sdmmc_host_get_slot_width,
+        .set_bus_ddr_mode = &sdmmc_host_set_bus_ddr_mode,
         .set_card_clk = &sdmmc_host_set_card_clk,
         .do_transaction = &sdmmc_host_do_transaction,
         .deinit = &sdmmc_host_deinit,