diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
index 9ff417230a..2da9edf287 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
@@ -637,7 +637,7 @@ Returns:
   // Copy variable store header
   //
   CopyMem (CurrPtr, VariableStoreHeader, sizeof (VARIABLE_STORE_HEADER));
-  CurrPtr = (UINT8 *) GetStartPointer (VariableStoreHeader);
+  CurrPtr = (UINT8 *) GetStartPointer ((VARIABLE_STORE_HEADER *) CurrPtr);
 
   //
   // Start Pointers for the variable.