diff --git a/core/scheduler.hpp b/core/scheduler.hpp
index 491408a..5bdcf22 100644
--- a/core/scheduler.hpp
+++ b/core/scheduler.hpp
@@ -52,6 +52,9 @@
 void
 cancel(const EventId& eventId);
 
+Scheduler&
+getGlobalScheduler();
+
 /** \brief Cancels an event automatically upon destruction.
  */
 class ScopedEventId : noncopyable