diff --git a/MdePkg/Include/Library/PeiPiLib.h b/MdePkg/Include/Library/PeiPiLib.h
deleted file mode 100644
index 42f6bce855..0000000000
--- a/MdePkg/Include/Library/PeiPiLib.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/** @file
-  MDE PI library functions and macros for PEI phase
-
-  Copyright (c) 2007, Intel Corporation                                                         
-  All rights reserved. This program and the accompanying materials                          
-  are licensed and made available under the terms and conditions of the BSD License         
-  which accompanies this distribution.  The full text of the license may be found at        
-  http://opensource.org/licenses/bsd-license.php                                            
-
-  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
-  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
-
-**/
-
-#ifndef __PEI_PI_LIB_H__
-#define __PEI_PI_LIB_H__
-
-/**
-  Install a EFI_PEI_FIRMWARE_VOLUME_INFO PPI to inform PEI core about the existence of a new Firmware Volume.
-  
-  The function allocate the EFI_PEI_PPI_DESCRIPTOR structure and update the fields accordingly to parameter passed
-  in and install the PPI.
-  
-  @param  FvFormat             Unique identifier of the format of the memory-mapped firmware volume. 
-                               If NULL is specified, EFI_FIRMWARE_FILE_SYSTEM2_GUID is used as the Format GUID.
-  @param  FvInfo               Points to a buffer which allows the EFI_PEI_FIRMWARE_VOLUME_PPI to
-                               process the volume. The format of this buffer is specific to the FvFormat. For
-                               memory-mapped firmware volumes, this typically points to the first byte of the
-                               firmware volume.
-  @param  FvInfoSize           Size of the data provided by FvInfo. For memory-mapped firmware volumes, this is
-                               typically the size of the firmware volume.
-  @param  ParentFvName         If the firmware volume originally came from a firmware file, then these point to the
-                               parent firmware volume name. If it did not originally come from a firmware file, 
-                               these should be NULL.
-  @param  ParentFileName       If the firmware volume originally came from a firmware file, then these point to the
-                               firmware volume file. If it did not originally come from a firmware file, 
-                               these should be NULL.
-   
-**/
-VOID
-EFIAPI
-PiLibInstallFvInfoPpi (
-  IN CONST EFI_GUID                *FvFormat, OPTIONAL
-  IN CONST VOID                    *FvInfo,
-  IN       UINT32                  FvInfoSize,
-  IN CONST EFI_GUID                *ParentFvName, OPTIONAL
-  IN CONST EFI_GUID                *ParentFileName OPTIONAL
-  );
-
-#endif
-
diff --git a/MdePkg/Include/Library/PeiServicesLib.h b/MdePkg/Include/Library/PeiServicesLib.h
index 220ac96718..2bfe7106f4 100644
--- a/MdePkg/Include/Library/PeiServicesLib.h
+++ b/MdePkg/Include/Library/PeiServicesLib.h
@@ -397,5 +397,36 @@ PeiServicesRegisterForShadow (
   IN  EFI_PEI_FILE_HANDLE FileHandle
   );
 
+/**
+  Install a EFI_PEI_FIRMWARE_VOLUME_INFO PPI to inform PEI core about the existence of a new Firmware Volume.
+  
+  The function allocate the EFI_PEI_PPI_DESCRIPTOR structure and update the fields accordingly to parameter passed
+  in and install the PPI.
+  
+  @param  FvFormat             Unique identifier of the format of the memory-mapped firmware volume. 
+                               If NULL is specified, EFI_FIRMWARE_FILE_SYSTEM2_GUID is used as the Format GUID.
+  @param  FvInfo               Points to a buffer which allows the EFI_PEI_FIRMWARE_VOLUME_PPI to
+                               process the volume. The format of this buffer is specific to the FvFormat. For
+                               memory-mapped firmware volumes, this typically points to the first byte of the
+                               firmware volume.
+  @param  FvInfoSize           Size of the data provided by FvInfo. For memory-mapped firmware volumes, this is
+                               typically the size of the firmware volume.
+  @param  ParentFvName         If the firmware volume originally came from a firmware file, then these point to the
+                               parent firmware volume name. If it did not originally come from a firmware file, 
+                               these should be NULL.
+  @param  ParentFileName       If the firmware volume originally came from a firmware file, then these point to the
+                               firmware volume file. If it did not originally come from a firmware file, 
+                               these should be NULL.
+   
+**/
+VOID
+EFIAPI
+PeiServicesInstallFvInfoPpi (
+  IN CONST EFI_GUID                *FvFormat, OPTIONAL
+  IN CONST VOID                    *FvInfo,
+  IN       UINT32                  FvInfoSize,
+  IN CONST EFI_GUID                *ParentFvName, OPTIONAL
+  IN CONST EFI_GUID                *ParentFileName OPTIONAL
+  );
 
 #endif