diff --git a/MdeModulePkg/Include/Protocol/Capsule.h b/MdeModulePkg/Include/Protocol/Capsule.h
index fad7bb928a..192d9e7851 100644
--- a/MdeModulePkg/Include/Protocol/Capsule.h
+++ b/MdeModulePkg/Include/Protocol/Capsule.h
@@ -21,7 +21,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 // Global ID for the Capsule Architectural Protocol
 //
 #define EFI_CAPSULE_ARCH_PROTOCOL_GUID \
-  { 0x5053697e, 0x2ebc, 0x4819, {0x90, 0xd9, 0x05, 0x80, 0xde, 0xee, 0x57, 0x54 }}
+  { 0x5053697e, 0x2cbc, 0x4819, {0x90, 0xd9, 0x05, 0x80, 0xde, 0xee, 0x57, 0x54 }}
 
 extern EFI_GUID gEfiCapsuleArchProtocolGuid;