diff --git a/src/gui/jtk/Jtk_event.cc b/src/gui/jtk/Jtk_event.cc
index 6643311..9a21ec0 100644
--- a/src/gui/jtk/Jtk_event.cc
+++ b/src/gui/jtk/Jtk_event.cc
@@ -241,6 +241,7 @@ void Jtk_WaitEvent(Jtk_Event * event)
         {
             event->type = JTK_EVENT_TIMER;
             event->timer.timer_id = timer_id;
+            Jtk_ServiceTimer(timer_id);
             return;
         }