diff --git a/UnixPkg/BootModePei/BootModePei.c b/UnixPkg/BootModePei/BootModePei.c
index b7f3ad0598..de76d36bf0 100644
--- a/UnixPkg/BootModePei/BootModePei.c
+++ b/UnixPkg/BootModePei/BootModePei.c
@@ -55,8 +55,8 @@ EFI_PEI_PPI_DESCRIPTOR  mPpiListRecoveryBootMode = {
 EFI_STATUS
 EFIAPI
 InitializeBootMode (
-  IN EFI_FFS_FILE_HEADER       *FfsHeader,
-  IN EFI_PEI_SERVICES          **PeiServices
+  IN       EFI_PEI_FILE_HANDLE       FileHandle,
+  IN CONST EFI_PEI_SERVICES          **PeiServices
   )
 /*++