diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
index 3c99367e76..834d2ff7c6 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
@@ -4103,6 +4103,7 @@ VariableCommonInitialize (
   //
   // Init non-volatile variable store.
   //
+  NvFvHeader = NULL;
   Status = InitNonVolatileVariableStore (&NvFvHeader);
   if (EFI_ERROR (Status)) {
     FreePool (mVariableModuleGlobal);