diff --git a/gtk2_ardour/luainstance.cc b/gtk2_ardour/luainstance.cc
index da95490966..5f414eb93d 100644
--- a/gtk2_ardour/luainstance.cc
+++ b/gtk2_ardour/luainstance.cc
@@ -1118,6 +1118,7 @@ LuaInstance::register_classes (lua_State* L)
 #undef IMPORTMODE
 #undef IMPORTPOSITION
 #undef IMPORTDISPOSITION
+#undef TEMPOEDITBEHAVIOR
 
 #define ZOOMFOCUS(NAME) .addConst (stringify(NAME), (Editing::ZoomFocus)Editing::NAME)
 #define GRIDTYPE(NAME) .addConst (stringify(NAME), (Editing::GridType)Editing::NAME)
@@ -1127,6 +1128,7 @@ LuaInstance::register_classes (lua_State* L)
 #define IMPORTMODE(NAME) .addConst (stringify(NAME), (Editing::ImportMode)Editing::NAME)
 #define IMPORTPOSITION(NAME) .addConst (stringify(NAME), (Editing::ImportPosition)Editing::NAME)
 #define IMPORTDISPOSITION(NAME) .addConst (stringify(NAME), (Editing::ImportDisposition)Editing::NAME)
+#define TEMPOEDITBEHAVIOR(NAME) .addConst (stringify(NAME), (Editing::TempoEditBehavior)Editing::NAME)
 	luabridge::getGlobalNamespace (L)
 		.beginNamespace ("Editing")
 #		include "editing_syms.h"