diff --git a/include/dbus_monitor.hpp b/include/dbus_monitor.hpp
index f770ec3..089df76 100644
--- a/include/dbus_monitor.hpp
+++ b/include/dbus_monitor.hpp
@@ -108,7 +108,7 @@
         .privileges({"Login"})
         .websocket()
         .onopen([&](crow::websocket::Connection& conn,
-                    std::shared_ptr<bmcweb::AsyncResp>) {
+                    const std::shared_ptr<bmcweb::AsyncResp>&) {
             BMCWEB_LOG_DEBUG << "Connection " << &conn << " opened";
             sessions[&conn] = DbusWebsocketSession();
         })