diff --git a/libs/ardour/ardour/session.h b/libs/ardour/ardour/session.h
index 67d5735496..fe2689ffa7 100644
--- a/libs/ardour/ardour/session.h
+++ b/libs/ardour/ardour/session.h
@@ -90,6 +90,7 @@
 #include "ardour/route.h"
 #include "ardour/route_graph.h"
 #include "ardour/transport_api.h"
+#include "ardour/triggerbox.h"
 
 class XMLTree;
 class XMLNode;
@@ -1195,6 +1196,8 @@ public:
 
 	/* Controllables */
 
+	boost::shared_ptr<ARDOUR::Trigger> trigger_by_id (PBD::ID) const;
+
 	boost::shared_ptr<Processor> processor_by_id (PBD::ID) const;
 
 	boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
diff --git a/libs/ardour/session.cc b/libs/ardour/session.cc
index 3b595e9455..d9bd579e65 100644
--- a/libs/ardour/session.cc
+++ b/libs/ardour/session.cc
@@ -4125,6 +4125,23 @@ Session::stripable_by_id (PBD::ID id) const
 	return boost::shared_ptr<Stripable>();
 }
 
+boost::shared_ptr<Trigger>
+Session::trigger_by_id (PBD::ID id) const
+{
+	boost::shared_ptr<RouteList> r = routes.reader ();
+	for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
+		boost::shared_ptr<TriggerBox> box = (*i)->triggerbox();
+		if (box) {
+			TriggerPtr trigger = box->trigger_by_id(id);
+			if (trigger) {
+				return trigger;
+			}
+		}
+	}
+
+	return boost::shared_ptr<Trigger> ();
+}
+
 boost::shared_ptr<Processor>
 Session::processor_by_id (PBD::ID id) const
 {