diff --git a/Vlv2TbltDevicePkg/Application/FirmwareUpdate/FirmwareUpdate.c b/Vlv2TbltDevicePkg/Application/FirmwareUpdate/FirmwareUpdate.c
index 16629bf93b..8e44224e67 100644
--- a/Vlv2TbltDevicePkg/Application/FirmwareUpdate/FirmwareUpdate.c
+++ b/Vlv2TbltDevicePkg/Application/FirmwareUpdate/FirmwareUpdate.c
@@ -34,7 +34,7 @@ FV_REGION_INFO mRegionInfo[] = {
   {FixedPcdGet32 (PcdBiosRomBase), FixedPcdGet32 (PcdBiosRomSize), TRUE}
 };
 
-UINTN mRegionInfoCount = sizeof (mRegionInfo) / sizeof (mRegionInfo[0]);
+UINTN mRegionInfoCount = ARRAY_SIZE (mRegionInfo);
 
 FV_INPUT_DATA mInputData = {0};