diff --git a/MdePkg/Include/Pi/PiStatusCode.h b/MdePkg/Include/Pi/PiStatusCode.h
index 23c6a3836a..5e17af4b92 100644
--- a/MdePkg/Include/Pi/PiStatusCode.h
+++ b/MdePkg/Include/Pi/PiStatusCode.h
@@ -758,6 +758,8 @@ typedef struct {
 #define EFI_SW_PEIM_PC_CAPSULE_START  (EFI_SUBCLASS_SPECIFIC | 0x00000002)
 #define EFI_SW_PEIM_PC_RECOVERY_USER  (EFI_SUBCLASS_SPECIFIC | 0x00000003)
 #define EFI_SW_PEIM_PC_RECOVERY_AUTO  (EFI_SUBCLASS_SPECIFIC | 0x00000004)
+#define EFI_SW_PEI_PC_S3_BOOT_SCRIPT  (EFI_SUBCLASS_SPECIFIC | 0x00000005)
+#define EFI_SW_PEI_PC_OS_WAKE         (EFI_SUBCLASS_SPECIFIC | 0x00000006)
 ///@}
 
 ///