diff --git a/monitor/trust_manager.hpp b/monitor/trust_manager.hpp
index d78e647..031d890 100644
--- a/monitor/trust_manager.hpp
+++ b/monitor/trust_manager.hpp
@@ -122,7 +122,7 @@
          * @param[in] sensor - the sensor to register
          */
         void registerSensor(
-                std::unique_ptr<monitor::TachSensor>& sensor)
+                std::shared_ptr<monitor::TachSensor>& sensor)
         {
             std::for_each(
                     groups.begin(),