diff --git a/src/item_updater.hpp b/src/item_updater.hpp
index c3da8f9..0477e60 100644
--- a/src/item_updater.hpp
+++ b/src/item_updater.hpp
@@ -197,6 +197,19 @@
 
     /** @brief A collection of the version strings */
     std::set<std::string> versionStrings;
+
+    /** @brief A struct to hold the PSU present status and model */
+    struct psuStatus
+    {
+        bool present;
+        std::string model;
+    };
+
+    /** @brief The map of PSU inventory path and the psuStatus
+     *
+     * It is used to handle psu inventory changed event, that only create psu
+     * software object when a PSU is present and the model is retrieved */
+    std::map<std::string, psuStatus> psuStatusMap;
 };
 
 } // namespace updater