diff --git a/nd2reader/service/__init__.py b/nd2reader/service/__init__.py
index 5315c78..03dcc28 100644
--- a/nd2reader/service/__init__.py
+++ b/nd2reader/service/__init__.py
@@ -4,7 +4,7 @@ import struct
 from StringIO import StringIO
 from collections import namedtuple
 import logging
-from nd2reader.model import Channel, ImageSet, Image
+from nd2reader.model import Channel
 
 log = logging.getLogger("nd2reader")
 log.setLevel(logging.DEBUG)