diff --git a/board/toradex/common/tdx-cfg-block.c b/board/toradex/common/tdx-cfg-block.c
index 0014ce8..2a810c8 100644
--- a/board/toradex/common/tdx-cfg-block.c
+++ b/board/toradex/common/tdx-cfg-block.c
@@ -110,7 +110,7 @@
 		ret = -ENODEV;
 		goto out;
 	}
-	if (part != mmc->block_dev.hwpart) {
+	if (part != mmc_get_blk_desc(mmc)->hwpart) {
 		if (blk_select_hwpart_devnum(IF_TYPE_MMC, dev, part)) {
 			puts("MMC partition switch failed\n");
 			ret = -ENODEV;