diff --git a/map/giantmap/mapdesc.json b/map/giantmap/giantmap.json
similarity index 100%
rename from map/giantmap/mapdesc.json
rename to map/giantmap/giantmap.json
diff --git a/map/labyrinth/mapdesc.json b/map/labyrinth/labyrinth.json
similarity index 100%
rename from map/labyrinth/mapdesc.json
rename to map/labyrinth/labyrinth.json
diff --git a/map/menu/mapdesc.json b/map/menu/menu.json
similarity index 100%
rename from map/menu/mapdesc.json
rename to map/menu/menu.json
diff --git a/map/roadmap/mapdesc.json b/map/roadmap/roadmap.json
similarity index 100%
rename from map/roadmap/mapdesc.json
rename to map/roadmap/roadmap.json
diff --git a/map/smallmap/mapdesc.json b/map/smallmap/smallmap.json
similarity index 100%
rename from map/smallmap/mapdesc.json
rename to map/smallmap/smallmap.json
diff --git a/map/world7/mapdesc.json b/map/world7/world7.json
similarity index 100%
rename from map/world7/mapdesc.json
rename to map/world7/world7.json
diff --git a/worlds.py b/worlds.py
index 59f92c0..53d9450 100644
--- a/worlds.py
+++ b/worlds.py
@@ -6,7 +6,7 @@
 for name in os.listdir('map'):
     if not os.path.isdir(os.path.join('map', name)):
         continue
-    descfilename = os.path.join('map', name, 'mapdesc.json')
+    descfilename = os.path.join('map', name, name+'.json')
     try:
         imfile = open(descfilename)
     except: