diff --git a/src/entity_manager/entity_manager.hpp b/src/entity_manager/entity_manager.hpp
index fdcce53..cbb5f0a 100644
--- a/src/entity_manager/entity_manager.hpp
+++ b/src/entity_manager/entity_manager.hpp
@@ -82,6 +82,9 @@
     boost::asio::steady_timer propertiesChangedTimer;
     size_t propertiesChangedInstance = 0;
 
+    boost::container::flat_map<std::string, sdbusplus::bus::match_t>
+        dbusMatches;
+
     void startRemovedTimer(boost::asio::steady_timer& timer,
                            nlohmann::json& systemConfiguration);
 };