diff --git a/src/inventory_mac.hpp b/src/inventory_mac.hpp
index 72b312d..1b6aa8b 100644
--- a/src/inventory_mac.hpp
+++ b/src/inventory_mac.hpp
@@ -1,6 +1,7 @@
 #pragma once
 #include <memory>
 #include <sdbusplus/bus.hpp>
+#include <stdplus/pinned.hpp>
 
 namespace phosphor::network
 {
@@ -14,7 +15,8 @@
 {
     virtual ~Runtime() = default;
 };
-std::unique_ptr<Runtime> watch(sdbusplus::bus_t& bus, Manager& m);
+std::unique_ptr<Runtime> watch(stdplus::PinnedRef<sdbusplus::bus_t> bus,
+                               stdplus::PinnedRef<Manager> m);
 
 } // namespace inventory
 } // namespace phosphor::network