diff --git a/lib/scheduler.cc b/lib/scheduler.cc
index 75e18414..2beac8a4 100644
--- a/lib/scheduler.cc
+++ b/lib/scheduler.cc
@@ -461,7 +461,11 @@ void Scheduler::schedule_sync(BaseAction* action, const Tag& tag) {
   log_.debug() << "Schedule action " << action->fqn() << (action->is_logical() ? " synchronously " : " asynchronously ")
                << " with tag " << tag;
   reactor_assert(logical_time_ < tag);
-  tracepoint(reactor_cpp, schedule_action, action->container()->fqn(), action->name(), tag);
+  if (action->container() != nullptr) {
+    tracepoint(reactor_cpp, schedule_action, action->container()->fqn(), action->name(), tag);
+  } else {
+    tracepoint(reactor_cpp, schedule_action, action->environment()->name(), action->name(), tag);
+  }
   Statistics::increment_scheduled_actions();
 
   const auto& action_list = event_queue_.insert_event_at(tag);