diff --git a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.h b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.h
index c91fbc6d11..839cd30d9e 100644
--- a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.h
+++ b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.h
@@ -279,8 +279,8 @@ Decompress (
 EFI_STATUS
 EFIAPI
 PeimInitializeDxeIpl (
-  IN EFI_PEI_FILE_HANDLE       FfsHandle,
-  IN EFI_PEI_SERVICES          **PeiServices
+  IN       EFI_PEI_FILE_HANDLE       FfsHandle,
+  IN CONST EFI_PEI_SERVICES          **PeiServices
   );
 
 
diff --git a/MdeModulePkg/Core/DxeIplPeim/DxeLoad.c b/MdeModulePkg/Core/DxeIplPeim/DxeLoad.c
index 2871d210ba..3382cd409b 100644
--- a/MdeModulePkg/Core/DxeIplPeim/DxeLoad.c
+++ b/MdeModulePkg/Core/DxeIplPeim/DxeLoad.c
@@ -68,8 +68,8 @@ CONST EFI_PEI_PPI_DESCRIPTOR     gEndOfPeiSignalPpi = {
 EFI_STATUS
 EFIAPI
 PeimInitializeDxeIpl (
-  IN EFI_PEI_FILE_HANDLE       FfsHandle,
-  IN EFI_PEI_SERVICES          **PeiServices
+  IN       EFI_PEI_FILE_HANDLE       FfsHandle,
+  IN CONST EFI_PEI_SERVICES          **PeiServices
   )
 {
   EFI_STATUS                                Status;