diff --git a/mclevel.py b/mclevel.py
index c6bb2b0..4960672 100644
--- a/mclevel.py
+++ b/mclevel.py
@@ -520,6 +520,9 @@ class MCLevel(object):
         
         f.BlockLight = whiteLight
         f.SkyLight = whiteLight
+        f.Entities = []
+        f.TileEntities = []
+        
         
         f.root_tag = TAG_Compound();