diff --git a/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c b/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c
index ffaa33472a..b3e4f82138 100644
--- a/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c
+++ b/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c
@@ -2533,7 +2533,7 @@ RouteConfigRespForEfiVarStore (
 {
   EFI_STATUS Status;
   EFI_STRING VarStoreName;
-  CHAR8      *VarStore;
+  UINT8      *VarStore;
   UINTN      BufferSize;
   UINTN      BlockSize;