diff --git a/overviewer_core/chunk.py b/overviewer_core/chunk.py
index b6116dd..3920a13 100644
--- a/overviewer_core/chunk.py
+++ b/overviewer_core/chunk.py
@@ -83,15 +83,6 @@ def get_blockarray_fromfile(filename, north_direction):
     chunk_data['Blocks'] = numpy.rot90(numpy.frombuffer(
             level['Blocks'], dtype=numpy.uint8).reshape((16,16,128)),
             self._get_north_rotations())
-    chunk_data['Data'] = numpy.rot90(numpy.frombuffer(
-            level['Data'], dtype=numpy.uint8).reshape((16,16,64)),
-            self._get_north_rotations())
-    chunk_data['SkyLight'] = numpy.rot90(numpy.frombuffer(
-            level['SkyLight'], dtype=numpy.uint8).reshape((16,16,64)),
-            self._get_north_rotations())
-    chunk_data['BlockLight'] = numpy.rot90(numpy.frombuffer(
-            level['BlockLight'], dtype=numpy.uint8).reshape((16,16,64)),
-            self._get_north_rotations())
     return get_blockarray(chunk_data)
 
 def get_skylight_array(level):