diff --git a/mclevel.py b/mclevel.py
index fe8b3d7..eae13e7 100644
--- a/mclevel.py
+++ b/mclevel.py
@@ -450,6 +450,9 @@ class MCLevel(object):
     def loadedChunks(self):
         return itertools.product(xrange(0, self.Width+15>>4), xrange(0, self.Length+15>>4))
     
+    @property
+    def presentChunks(self): return self.allChunks #backward compatibility
+    
     @property
     def allChunks(self):
         return self.loadedChunks