diff --git a/stepmania/src/Course.cpp b/stepmania/src/Course.cpp
index b91693a696..12f42e2df2 100644
--- a/stepmania/src/Course.cpp
+++ b/stepmania/src/Course.cpp
@@ -932,6 +932,7 @@ public:
 	}
 	static int GetGroupName( T* p, lua_State *L )		{ lua_pushstring(L, p->m_sGroupName ); return 1; }
 	static int IsAutogen( T* p, lua_State *L )		{ lua_pushboolean(L, p->m_bIsAutogen ); return 1; }
+	static int GetEstimatedNumStages( T* p, lua_State *L )	{ lua_pushnumber(L, p->GetEstimatedNumStages() ); return 1; }
 
 	static void Register(lua_State *L)
 	{
@@ -944,6 +945,7 @@ public:
 		ADD_METHOD( GetAllTrails );
 		ADD_METHOD( GetGroupName );
 		ADD_METHOD( IsAutogen );
+		ADD_METHOD( GetEstimatedNumStages );
 
 		Luna<T>::Register( L );
 	}