diff --git a/MdePkg/Include/Library/PeiPiLib.h b/MdePkg/Include/Library/PeiPiLib.h
index 8729612c15..c0c2eba873 100644
--- a/MdePkg/Include/Library/PeiPiLib.h
+++ b/MdePkg/Include/Library/PeiPiLib.h
@@ -44,7 +44,7 @@ PiLibInstallFvInfoPpi (
   IN CONST VOID                    *FvInfo,
   IN       UINT32                  FvInfoSize,
   IN CONST EFI_GUID                *ParentFvName, OPTIONAL
-  IN CONST EFI_GUID                *PraentFileName OPTIONAL
+  IN CONST EFI_GUID                *ParentFileName OPTIONAL
 );
 
 #endif