diff --git a/caveclient/materializationengine.py b/caveclient/materializationengine.py
index c38cc7a6..6a1a21b6 100644
--- a/caveclient/materializationengine.py
+++ b/caveclient/materializationengine.py
@@ -13,7 +13,6 @@
 import pytz
 from cachetools import TTLCache, cached
 from cachetools.keys import hashkey
-
 from IPython.display import HTML
 from requests import HTTPError