diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/VarCheck.c b/MdeModulePkg/Universal/Variable/RuntimeDxe/VarCheck.c
index 01ca55a178..b2f5572327 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/VarCheck.c
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/VarCheck.c
@@ -403,6 +403,17 @@ UEFI_DEFINED_VARIABLE_ENTRY mGlobalVariableList[] = {
     },
     InternalVarCheckSizeArray
   },
+  {
+    EFI_SYS_PREP_ORDER_VARIABLE_NAME,
+    {
+      VAR_CHECK_VARIABLE_PROPERTY_REVISION,
+      0,
+      VARIABLE_ATTRIBUTE_NV_BS_RT,
+      sizeof (UINT16),
+      MAX_UINTN
+    },
+    InternalVarCheckSizeArray
+  },
   {
     EFI_HW_ERR_REC_SUPPORT_VARIABLE_NAME,
     {
@@ -581,6 +592,17 @@ UEFI_DEFINED_VARIABLE_ENTRY mGlobalVariableList2[] = {
     },
     InternalVarCheckLoadOption
   },
+  {
+    L"SysPrep####",
+    {
+      VAR_CHECK_VARIABLE_PROPERTY_REVISION,
+      0,
+      VARIABLE_ATTRIBUTE_NV_BS_RT,
+      sizeof (UINT32) + sizeof (UINT16),
+      MAX_UINTN
+    },
+    InternalVarCheckLoadOption
+  },
   {
     L"Key####",
     {