diff --git a/arch/arm64/configs/sdm670_defconfig b/arch/arm64/configs/sdm670_defconfig
index 747d373..a4363ac9 100644
--- a/arch/arm64/configs/sdm670_defconfig
+++ b/arch/arm64/configs/sdm670_defconfig
@@ -279,6 +279,7 @@
 CONFIG_BLK_DEV_DM=y
 CONFIG_DM_CRYPT=y
 CONFIG_DM_REQ_CRYPT=y
+CONFIG_DM_DEFAULT_KEY=y
 CONFIG_DM_UEVENT=y
 CONFIG_DM_VERITY=y
 CONFIG_DM_VERITY_FEC=y