diff --git a/src/compas_cra/datastructures/__init__.py b/src/compas_cra/datastructures/__init__.py
index 54eaf7e3..9b725af0 100644
--- a/src/compas_cra/datastructures/__init__.py
+++ b/src/compas_cra/datastructures/__init__.py
@@ -17,7 +17,6 @@
 
 """
 
-
 from __future__ import absolute_import
 
 from .cra_assembly import CRA_Assembly