diff --git a/board/sifive/hifive-unleashed/genimage_sdcard.cfg b/board/sifive/hifive-unleashed/genimage_sdcard.cfg
index e66f221d73..079ac5ed26 100644
--- a/board/sifive/hifive-unleashed/genimage_sdcard.cfg
+++ b/board/sifive/hifive-unleashed/genimage_sdcard.cfg
@@ -6,18 +6,18 @@ image sdcard.img {
 	partition u-boot-spl {
 		image = "u-boot-spl.bin"
 		offset = 17K
-		partition-type-uuid = 5B193300-FC78-40CD-8002-E86C45580B47
+		partition-type-uuid = 5b193300-fc78-40cd-8002-e86c45580b47
 	}
 
 	partition u-boot {
 		image = "u-boot.itb"
 		offset = 1041K
-		partition-type-uuid = 2E54B353-1271-4842-806F-E436D6AF6985
+		partition-type-uuid = 2e54b353-1271-4842-806f-e436d6af6985
 	}
 
 	partition rootfs {
 		image = "rootfs.ext4"
-		partition-type-uuid = 0FC63DAF-8483-4772-8E79-3D69D8477DE4
+		partition-type-uuid = 0fc63daf-8483-4772-8e79-3d69d8477de4
 		bootable = true
 	}
 }
diff --git a/board/sifive/hifive-unleashed/genimage_spi-nor.cfg b/board/sifive/hifive-unleashed/genimage_spi-nor.cfg
index 903e675a90..14b7bb1e1c 100644
--- a/board/sifive/hifive-unleashed/genimage_spi-nor.cfg
+++ b/board/sifive/hifive-unleashed/genimage_spi-nor.cfg
@@ -8,12 +8,12 @@ image spi-nor.img {
 	partition u-boot-spl {
 		image = "u-boot-spl.bin"
 		offset = 20K
-		partition-type-uuid = 5B193300-FC78-40CD-8002-E86C45580B47
+		partition-type-uuid = 5b193300-fc78-40cd-8002-e86c45580b47
 	}
 
 	partition u-boot {
 		image = "u-boot.itb"
 		offset = 1044K
-		partition-type-uuid = 2E54B353-1271-4842-806F-E436D6AF6985
+		partition-type-uuid = 2e54b353-1271-4842-806f-e436d6af6985
 	}
 }