diff --git a/Files b/Files
index e5f931749..261e8e799 100644
--- a/Files
+++ b/Files
@@ -404,6 +404,8 @@ minetn-7.lev  oracle.lev    orcus.lev     sanctum.lev   soko1-1.lev
 soko1-2.lev   soko2-1.lev   soko2-2.lev   soko3-1.lev   soko3-2.lev   
 soko4-1.lev   soko4-2.lev   tower1.lev    tower2.lev    tower3.lev    
 valley.lev    water.lev     wizard1.lev   wizard2.lev   wizard3.lev   
+
+(files generated by makedefs at playground creation time)
 data         dungeon.pdf  options      oracles      quest.dat    rumors       
 
 (files generated for Qt interface on Mac OS X)