diff --git a/libs/ardour/luabindings.cc b/libs/ardour/luabindings.cc
index 00f2ed0aba..f88f257325 100644
--- a/libs/ardour/luabindings.cc
+++ b/libs/ardour/luabindings.cc
@@ -2856,6 +2856,9 @@ LuaBindings::common (lua_State* L)
 		.addFunction ("request_stop", &Session::request_stop)
 		.addFunction ("request_play_loop", &Session::request_play_loop)
 		.addFunction ("request_bounded_roll", &Session::request_bounded_roll)
+		.addFunction ("preroll_samples", &Session::preroll_samples)
+		.addFunction ("request_preroll_record_trim", &Session::request_preroll_record_trim)
+		.addFunction ("request_count_in_record", &Session::request_count_in_record)
 		.addFunction ("get_play_loop", &Session::get_play_loop)
 		.addFunction ("get_xrun_count", &Session::get_xrun_count)
 		.addFunction ("reset_xrun_count", &Session::reset_xrun_count)