diff --git a/MdePkg/Include/Library/PeiServicesLib.h b/MdePkg/Include/Library/PeiServicesLib.h
index 9714bb8ff1..71d15b606f 100644
--- a/MdePkg/Include/Library/PeiServicesLib.h
+++ b/MdePkg/Include/Library/PeiServicesLib.h
@@ -316,7 +316,7 @@ PeiServicesResetSystem (
 **/
 EFI_STATUS
 EFIAPI
-PeiServicesFfsFindByName (
+PeiServicesFfsFindFileByName (
   IN CONST  EFI_GUID            *FileName,
   IN CONST  EFI_PEI_FV_HANDLE   VolumeHandle,
   OUT       EFI_PEI_FILE_HANDLE *FileHandle