diff --git a/UefiCpuPkg/PiSmmCommunication/PiSmmCommunicationPei.c b/UefiCpuPkg/PiSmmCommunication/PiSmmCommunicationPei.c
index 68e5003ad4..110165b20b 100644
--- a/UefiCpuPkg/PiSmmCommunication/PiSmmCommunicationPei.c
+++ b/UefiCpuPkg/PiSmmCommunication/PiSmmCommunicationPei.c
@@ -1,7 +1,7 @@
 /** @file
 PiSmmCommunication PEI Driver.
 
-Copyright (c) 2010 - 2015, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2010 - 2021, Intel Corporation. All rights reserved.<BR>
 SPDX-License-Identifier: BSD-2-Clause-Patent
 
 **/
@@ -47,16 +47,10 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
   +----------------------------------+<--
   | EFI_SMM_COMMUNICATION_CONTEXT    |
   |   SwSmiNumber                    | <- SMRAM
-  |   BufferPtrAddress               |----------------
-  +----------------------------------+                |
-                                                      |
-  +----------------------------------+                |
-  | EFI_SMM_COMMUNICATION_ACPI_TABLE |                |
-  |   SwSmiNumber                    | <- AcpiTable   |
-  |   BufferPtrAddress               |---             |
-  +----------------------------------+   |            |
-                                         |            |
-  +----------------------------------+<---------------
+  |   BufferPtrAddress               |---
+  +----------------------------------+   |
+                                         |
+  +----------------------------------+<--
   | Communication Buffer Pointer     | <- AcpiNvs
   +----------------------------------+---
                                          |