diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c b/UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
index 13c2cb8da4..c79da418e3 100644
--- a/UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
+++ b/UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
@@ -696,8 +696,9 @@ BSPHandler (
   //
   // Allow APs to check in from this point on
   //
-  *mSmmMpSyncData->Counter       = 0;
-  *mSmmMpSyncData->AllCpusInSync = FALSE;
+  *mSmmMpSyncData->Counter                  = 0;
+  *mSmmMpSyncData->AllCpusInSync            = FALSE;
+  mSmmMpSyncData->AllApArrivedWithException = FALSE;
 }
 
 /**