diff --git a/libs/ardour/luabindings.cc b/libs/ardour/luabindings.cc
index 7e9dac8dbb..1c8630790b 100644
--- a/libs/ardour/luabindings.cc
+++ b/libs/ardour/luabindings.cc
@@ -236,6 +236,8 @@ LuaBindings::common (lua_State* L)
 		.addFunction ("n_inputs", &Route::n_inputs)
 		.addFunction ("n_outputs", &Route::n_outputs)
 		.addFunction ("set_comment", &Route::set_comment)
+		.addFunction ("strict_io", &Route::strict_io)
+		.addFunction ("set_strict_io", &Route::set_strict_io)
 		.endClass ()
 
 		.deriveWSPtrClass <Track, Route> ("Track")
@@ -361,6 +363,8 @@ LuaBindings::common (lua_State* L)
 		.addFunction ("plugin", &PluginInsert::plugin)
 		.addFunction ("activate", &PluginInsert::activate)
 		.addFunction ("deactivate", &PluginInsert::deactivate)
+		.addFunction ("strict_io_configured", &PluginInsert::strict_io_configured)
+		.addFunction ("set_strict_io", &PluginInsert::set_strict_io)
 		.endClass ()
 
 		.deriveWSPtrClass <AutomationControl, Evoral::Control> ("AutomationControl")