diff --git a/src/fru_device.cpp b/src/fru_device.cpp
index 9cd46b2..e7d4a15 100644
--- a/src/fru_device.cpp
+++ b/src/fru_device.cpp
@@ -1316,6 +1316,15 @@
                                           << "\n";
                                 continue;
                             }
+                            int rootBus = getRootBus(bus);
+                            if (rootBus >= 0)
+                            {
+                                rescanOneBus(busMap,
+                                             static_cast<uint16_t>(rootBus),
+                                             dbusInterfaceMap, false,
+                                             unknownBusObjectCount, powerIsOn,
+                                             objServer, systemBus);
+                            }
                             rescanOneBus(busMap, static_cast<uint16_t>(bus),
                                          dbusInterfaceMap, false,
                                          unknownBusObjectCount, powerIsOn,