diff --git a/host-bmc/dbus/custom_dbus.cpp b/host-bmc/dbus/custom_dbus.cpp
index d0979e9..e0d4fbf 100644
--- a/host-bmc/dbus/custom_dbus.cpp
+++ b/host-bmc/dbus/custom_dbus.cpp
@@ -126,5 +126,16 @@
                                 pldm::utils::DBusHandler::getBus(), path));
     }
 }
+
+void CustomDBus::implementFanInterface(const std::string& path)
+{
+    if (!fan.contains(path))
+    {
+        fan.emplace(path,
+                    std::make_unique<Fan>(pldm::utils::DBusHandler::getBus(),
+                                          path.c_str()));
+    }
+}
+
 } // namespace dbus
 } // namespace pldm