diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.c b/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.c
index 19979d5418..8c9fa14b5b 100644
--- a/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.c
+++ b/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.c
@@ -238,10 +238,10 @@ SmmReadSaveState (
     return EFI_INVALID_PARAMETER;
   }
   //
-  // The AsmLfence() call here is to ensure the above check for the CpuIndex
-  // has been completed before the execution of subsequent codes.
+  // The SpeculationBarrier() call here is to ensure the above check for the
+  // CpuIndex has been completed before the execution of subsequent codes.
   //
-  AsmLfence ();
+  SpeculationBarrier ();
 
   //
   // Check for special EFI_SMM_SAVE_STATE_REGISTER_PROCESSOR_ID