diff --git a/fw-update/manager.hpp b/fw-update/manager.hpp
index be45eb7..4d2a976 100644
--- a/fw-update/manager.hpp
+++ b/fw-update/manager.hpp
@@ -40,7 +40,8 @@
     explicit Manager(Event& event,
                      requester::Handler<requester::Request>& handler,
                      pldm::InstanceIdDb& instanceIdDb) :
-        inventoryMgr(handler, instanceIdDb, descriptorMap, componentInfoMap),
+        inventoryMgr(handler, instanceIdDb, descriptorMap,
+                     downstreamDescriptorMap, componentInfoMap),
         updateManager(event, handler, instanceIdDb, descriptorMap,
                       componentInfoMap)
     {}
@@ -90,6 +91,10 @@
     /** Descriptor information of all the discovered MCTP endpoints */
     DescriptorMap descriptorMap;
 
+    /** Downstream descriptor information of all the discovered MCTP endpoints
+     */
+    DownstreamDescriptorMap downstreamDescriptorMap;
+
     /** Component information of all the discovered MCTP endpoints */
     ComponentInfoMap componentInfoMap;