diff --git a/board/sandbox/sandbox.c b/board/sandbox/sandbox.c
index 4d89f9b..4c655df 100644
--- a/board/sandbox/sandbox.c
+++ b/board/sandbox/sandbox.c
@@ -30,6 +30,19 @@
 gd_t *gd;
 
 #if CONFIG_IS_ENABLED(EFI_HAVE_CAPSULE_SUPPORT)
+/* GUIDs for capsule updatable firmware images */
+#define SANDBOX_UBOOT_IMAGE_GUID \
+	EFI_GUID(0x09d7cf52, 0x0720, 0x4710, 0x91, 0xd1, \
+		 0x08, 0x46, 0x9b, 0x7f, 0xe9, 0xc8)
+
+#define SANDBOX_UBOOT_ENV_IMAGE_GUID \
+	EFI_GUID(0x5a7021f5, 0xfef2, 0x48b4, 0xaa, 0xba, \
+		 0x83, 0x2e, 0x77, 0x74, 0x18, 0xc0)
+
+#define SANDBOX_FIT_IMAGE_GUID \
+	EFI_GUID(0x3673b45d, 0x6a7c, 0x46f3, 0x9e, 0x60, \
+		 0xad, 0xab, 0xb0, 0x3f, 0x79, 0x37)
+
 struct efi_fw_image fw_images[] = {
 #if defined(CONFIG_EFI_CAPSULE_FIRMWARE_RAW)
 	{