diff --git a/stepmania/src/UnlockManager.cpp b/stepmania/src/UnlockManager.cpp
index 9b18f99619..600146cf0c 100644
--- a/stepmania/src/UnlockManager.cpp
+++ b/stepmania/src/UnlockManager.cpp
@@ -713,7 +713,7 @@ public:
 	static int GetNumUnlocks( T* p, lua_State *L )			{ lua_pushnumber( L, p->GetNumUnlocks() ); return 1; }
 	static int GetNumUnlocked( T* p, lua_State *L )			{ lua_pushnumber( L, p->GetNumUnlocked() ); return 1; }
 	static int AnyUnlocksToCelebrate( T* p, lua_State *L )		{ lua_pushboolean( L, p->AnyUnlocksToCelebrate() ); return 1; }
-	static int GetUnlockEntry( T* p, lua_State *L )			{ int iIndex = IArg(1); p->m_UnlockEntries[iIndex].PushSelf(L); return 1; }
+	static int GetUnlockEntry( T* p, lua_State *L )			{ int iIndex = IArg(1); if( iIndex >= p->m_UnlockEntries.size() ) return 0; p->m_UnlockEntries[iIndex].PushSelf(L); return 1; }
 	static int GetSongsUnlockedByEntryID( T* p, lua_State *L )
 	{
 		vector<Song *> apSongs;