diff --git a/stepmania/src/UnlockManager.cpp b/stepmania/src/UnlockManager.cpp
index 1dd0accbbc..3d78a9dd3b 100644
--- a/stepmania/src/UnlockManager.cpp
+++ b/stepmania/src/UnlockManager.cpp
@@ -385,6 +385,35 @@ int UnlockManager::GetNumUnlocks() const
 	return m_SongEntries.size();
 }
 
+#include "LuaBinding.h"
+
+template<class T>
+class LunaUnlockManager: public Luna<T>
+{
+public:
+	LunaUnlockManager() { LUA->Register( Register ); }
+
+	static int UnlockCode( T* p, lua_State *L )			{ int iCode = IArg(1); p->UnlockCode(iCode); return 0; }
+
+	static void Register(lua_State *L)
+	{
+		ADD_METHOD( UnlockCode )
+		Luna<T>::Register( L );
+
+		// Add global singleton if constructed already.  If it's not constructed yet,
+		// then we'll register it later when we reinit Lua just before 
+		// initializing the display.
+		if( UNLOCKMAN )
+		{
+			lua_pushstring(L, "UNLOCKMAN");
+			UNLOCKMAN->PushSelf( LUA->L );
+			lua_settable(L, LUA_GLOBALSINDEX);
+		}
+	}
+};
+
+LUA_REGISTER_CLASS( UnlockManager )
+
 /*
  * (c) 2001-2004 Kevin Slaughter, Andrew Wong, Glenn Maynard
  * All rights reserved.
diff --git a/stepmania/src/UnlockManager.h b/stepmania/src/UnlockManager.h
index c6fc8304f9..3686402034 100644
--- a/stepmania/src/UnlockManager.h
+++ b/stepmania/src/UnlockManager.h
@@ -8,6 +8,7 @@
 
 class Song;
 class Profile;
+struct lua_State;
 
 enum UnlockType
 {
@@ -67,9 +68,10 @@ public:
 
 	void GetPoints( const Profile *pProfile, float fScores[NUM_UNLOCK_TYPES] ) const;
 
+	// Unlock an entry by code.
 	void UnlockCode( int num );
 
-	// unlocks the song's code
+	// Unlocks a song.
 	void UnlockSong( const Song *song );
 
 	// All locked songs are stored here
@@ -78,6 +80,9 @@ public:
 	// If global song or course points change, call to update
 	void UpdateSongs();
 
+	// Lua
+	void PushSelf( lua_State *L );
+
 private:
 	// read unlocks
 	bool Load();