diff --git a/etc/bootloader/grub b/etc/bootloader/grub
index ebd503c..c6c228c 100644
--- a/etc/bootloader/grub
+++ b/etc/bootloader/grub
@@ -29,7 +29,7 @@ config() {
 	if ! [ "${KEY_LANG}" == "en" ]; then
 		if [ "${EFI}" == "1" ]; then
 			VGUUID=$(vgdisplay |grep UUID|awk '{print $3}')
-			LVUUID=$(lvdisplay ${TARGETNAME_UNDERSCORE}-root |grep UUID|awk '{print $3}')
+			LVUUID=$(lvdisplay "/dev/mapper/${TARGETNAME_UNDERSCORE}-root" |grep UUID|awk '{print $3}')
 			rl=$(basename $(readlink "${TARGET_PHY_ID}-part${TARGET_PART}"))
 			TMP=$(lsblk -o NAME,UUID -l|grep "${rl}" | awk '{print $2}')
 			CRYPTUUID=${TMP//-/}