diff --git a/libs/ardour/luabindings.cc b/libs/ardour/luabindings.cc
index 51dd270c89..2108eda76c 100644
--- a/libs/ardour/luabindings.cc
+++ b/libs/ardour/luabindings.cc
@@ -1197,6 +1197,7 @@ LuaBindings::common (lua_State* L)
 		.endClass ()
 
 		.deriveWSPtrClass <MidiTrack, Track> ("MidiTrack")
+		.addFunction ("write_immediate_event", &MidiTrack::write_immediate_event)
 		.endClass ()
 
 		.beginWSPtrClass <Readable> ("Readable")
@@ -1533,6 +1534,7 @@ LuaBindings::common (lua_State* L)
 		.addFunction ("enable", &PluginInsert::enable)
 		.addFunction ("enabled", &PluginInsert::enabled)
 		.addFunction ("strict_io_configured", &PluginInsert::strict_io_configured)
+		.addFunction ("write_immediate_event", &PluginInsert::write_immediate_event)
 		.addFunction ("input_map", (ARDOUR::ChanMapping (PluginInsert::*)(uint32_t) const)&PluginInsert::input_map)
 		.addFunction ("output_map", (ARDOUR::ChanMapping (PluginInsert::*)(uint32_t) const)&PluginInsert::output_map)
 		.addFunction ("set_input_map", &PluginInsert::set_input_map)