diff --git a/scheduled_host_transition.hpp b/scheduled_host_transition.hpp
index 352fc8c..19736e6 100644
--- a/scheduled_host_transition.hpp
+++ b/scheduled_host_transition.hpp
@@ -34,7 +34,7 @@
         ScheduledHostTransitionInherit(
             bus, objPath, ScheduledHostTransition::action::defer_emit),
         bus(bus), id(id), event(event),
-        timer(event, std::bind(&ScheduledHostTransition::callback, this))
+        timer(event, [this](auto&) { callback(); })
     {
         initialize();