diff --git a/desktop_version/src/CustomLevels.h b/desktop_version/src/CustomLevels.h
index 8c84341d..68d9ad20 100644
--- a/desktop_version/src/CustomLevels.h
+++ b/desktop_version/src/CustomLevels.h
@@ -214,7 +214,6 @@ class editorclass{
   //Colouring stuff
   int getwarpbackground(int rx, int ry);
 
-  std::vector<std::string> getLevelDirFileNames( );
   static const int maxwidth = 20, maxheight = 20; //Special; the physical max the engine allows
   static const int numrooms = maxwidth * maxheight;
   int contents[40 * 30 * numrooms];