diff --git a/vpd-manager/include/constants.hpp b/vpd-manager/include/constants.hpp
index f71b18e..e605cd1 100644
--- a/vpd-manager/include/constants.hpp
+++ b/vpd-manager/include/constants.hpp
@@ -139,6 +139,7 @@
 constexpr auto kwdHW = "HW";
 constexpr auto kwdIM = "IM";
 constexpr auto kwdPN = "PN";
+constexpr auto kwdFN = "FN";
 constexpr auto recVSYS = "VSYS";
 constexpr auto recVCEN = "VCEN";
 constexpr auto locationCodeInf = "com.ibm.ipzvpd.Location";