diff --git a/MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLibStandaloneMm.c b/MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLibStandaloneMm.c
index f93ad7e7c0..4bfaf1e261 100644
--- a/MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLibStandaloneMm.c
+++ b/MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLibStandaloneMm.c
@@ -47,5 +47,5 @@ VarCheckPolicyIsPrimaryBufferValid (
   IN UINT64                Length
   )
 {
-  return MmIsBufferOutsideMmValid (Buffer, Length);
+  return TRUE;
 }