diff --git a/libs/ardour/luabindings.cc b/libs/ardour/luabindings.cc
index 33283c5c07..e7deda5628 100644
--- a/libs/ardour/luabindings.cc
+++ b/libs/ardour/luabindings.cc
@@ -184,6 +184,7 @@ CLASSKEYS(PBD::PropertyChange);
 CLASSKEYS(std::vector<std::string>);
 CLASSKEYS(std::list<boost::shared_ptr<ARDOUR::Route> >);
 CLASSKEYS(std::list<boost::shared_ptr<ARDOUR::Port> >);
+CLASSKEYS(std::vector<boost::shared_ptr<ARDOUR::Processor> >);
 CLASSKEYS(boost::shared_ptr<ARDOUR::PluginInfo>);
 CLASSKEYS(boost::shared_ptr<ARDOUR::Region>);
 CLASSKEYS(boost::weak_ptr<ARDOUR::Route>);
@@ -821,6 +822,8 @@ LuaBindings::common (lua_State* L)
 		.addStaticFunction ("midi_note_name", &ParameterDescriptor::midi_note_name)
 		.endClass ()
 
+		.beginStdVector <boost::shared_ptr<ARDOUR::Processor> > ("ProcessorVector").endClass ()
+
 		.deriveWSPtrClass <Processor, SessionObject> ("Processor")
 		.addCast<Automatable> ("to_automatable")
 		.addCast<PluginInsert> ("to_insert")