diff --git a/MdeModulePkg/Universal/PCD/Dxe/Service.c b/MdeModulePkg/Universal/PCD/Dxe/Service.c
index 9b4701bdd7..cf5f2444f6 100644
--- a/MdeModulePkg/Universal/PCD/Dxe/Service.c
+++ b/MdeModulePkg/Universal/PCD/Dxe/Service.c
@@ -1864,7 +1864,7 @@ VariableLockDynamicHiiPcd (
   //
   // Go through PCD database to find out DynamicHii PCDs.
   //
-  for (TokenNumber = 0; TokenNumber < LocalTokenCount; TokenNumber++) {
+  for (TokenNumber = 1; TokenNumber <= LocalTokenCount; TokenNumber++) {
     if (IsPeiDb) {
       LocalTokenNumber = GetLocalTokenNumber (TRUE, TokenNumber);
     } else {