diff --git a/MdePkg/Include/PiPei.h b/MdePkg/Include/PiPei.h
index 7124432e68..b95eba2765 100644
--- a/MdePkg/Include/PiPei.h
+++ b/MdePkg/Include/PiPei.h
@@ -24,16 +24,6 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include <Pi/PiPeiCis.h>
 #include <Uefi/UefiMultiPhase.h>
 
-//
-// BUGBUG: The EFI_PEI_STARTUP_DESCRIPTOR definition does not follows PI specification.
-//         After enabling PI for Nt32Pkg and tools generate correct autogen for PEI_CORE,
-//         the following structure should be removed at once.
-//
-typedef struct {
-  UINTN                   BootFirmwareVolume;
-  UINTN                   SizeOfCacheAsRam;
-  EFI_PEI_PPI_DESCRIPTOR  *DispatchTable;
-} EFI_PEI_STARTUP_DESCRIPTOR;
 
 #endif