diff --git a/scheduler/scheduler.h b/scheduler/scheduler.h
index 6ba826a..58a0726 100644
--- a/scheduler/scheduler.h
+++ b/scheduler/scheduler.h
@@ -127,6 +127,7 @@
   Mutex m_mutex;
   volatile bool m_running;
   event_base *m_base;
+  event *m_ev;
   boost::thread m_thread;
 };