diff --git a/read_fru_data.hpp b/read_fru_data.hpp
index d89646c..cd5f661 100644
--- a/read_fru_data.hpp
+++ b/read_fru_data.hpp
@@ -15,6 +15,8 @@
 static constexpr auto invMgrInterface = "xyz.openbmc_project.Inventory.Manager";
 static constexpr auto invObjPath = "/xyz/openbmc_project/inventory";
 static constexpr auto propInterface = "org.freedesktop.DBus.Properties";
+static constexpr auto invItemInterface = "xyz.openbmc_project.Inventory.Item";
+static constexpr auto itemPresentProp = "Present";
 
 /**
  * @brief Get fru area data as per IPMI specification