diff --git a/board/aarch64-efi/genimage-efi.cfg b/board/aarch64-efi/genimage-efi.cfg
index 87e85816bc..158deab87d 100644
--- a/board/aarch64-efi/genimage-efi.cfg
+++ b/board/aarch64-efi/genimage-efi.cfg
@@ -18,7 +18,7 @@ image disk.img {
 
 	partition boot {
 		image = "efi-part.vfat"
-		partition-type-uuid = c12a7328-f81f-11d2-ba4b-00a0c93ec93b
+		partition-type-uuid = U
 		offset = 32K
 		bootable = true
 	}
diff --git a/board/pc/genimage-efi.cfg b/board/pc/genimage-efi.cfg
index 035a077a78..c231e1b9b2 100644
--- a/board/pc/genimage-efi.cfg
+++ b/board/pc/genimage-efi.cfg
@@ -19,7 +19,7 @@ image disk.img {
 
 	partition boot {
 		image = "efi-part.vfat"
-		partition-type-uuid = c12a7328-f81f-11d2-ba4b-00a0c93ec93b
+		partition-type-uuid = U
 		offset = 32K
 		bootable = true
 	}
diff --git a/board/qemu/aarch64-sbsa/genimage.cfg b/board/qemu/aarch64-sbsa/genimage.cfg
index bdf8a89d75..e7ac7f2ee1 100644
--- a/board/qemu/aarch64-sbsa/genimage.cfg
+++ b/board/qemu/aarch64-sbsa/genimage.cfg
@@ -19,7 +19,7 @@ image disk.img {
 
 	partition boot {
 		image = "efi-part.vfat"
-		partition-type-uuid = c12a7328-f81f-11d2-ba4b-00a0c93ec93b
+		partition-type-uuid = U
 		offset = 32K
 		bootable = true
 	}