diff --git a/uwsift/view/scene_graph.py b/uwsift/view/scene_graph.py
index f2471e1a..74727cbe 100644
--- a/uwsift/view/scene_graph.py
+++ b/uwsift/view/scene_graph.py
@@ -86,6 +86,7 @@
 )
 DEFAULT_TEXTURE_SHAPE = (4, 16)
 
+
 class CustomImage(Image):
     """Custom image override to fix issue #404."""