diff --git a/surf/subd/cc.py b/surf/subd/cc.py
index 9dfe8ba..764caf8 100644
--- a/surf/subd/cc.py
+++ b/surf/subd/cc.py
@@ -43,7 +43,8 @@ def refine(mesh):
 
         # Set each edge point to be the average of the two neighbouring, (very
         # recently calculated) face points ...
-        tmp_verts.extend([new_vertices[f + f_vert_offset] for f in old_face_ids_for_old_edge])
+        tmp_verts.extend([new_vertices[f + f_vert_offset]
+            for f in old_face_ids_for_old_edge])
 
         # ... and its two original endpoints.
         tmp_verts.extend([mesh.vertices[vid] for vid in old_edge])
@@ -78,7 +79,9 @@ def refine(mesh):
 
         # where each edge midpoint is the average of its two endpoint vertices.
         # **Move** each original point to the point (or add it to new_verts)
-        new_vertex_point = (F + 2 * R + (len(edges) - 3) * new_vertices[old_vid]) / len(edges)
+        new_vertex_point = (F + 2 * R
+                                + (len(edges) - 3) * new_vertices[old_vid]
+                            ) / len(edges)
         new_vertices[old_vid] = new_vertex_point
 
         # Connect each new Vertex point to the new edge points of all original
diff --git a/surf/test/subd/cc.py b/surf/test/subd/cc.py
index 902d5f6..94fb0c8 100644
--- a/surf/test/subd/cc.py
+++ b/surf/test/subd/cc.py
@@ -14,7 +14,8 @@ class TestCC(unittest.TestCase):
                 'blender', 'samples')
         self.cube_file_name = os.path.join(self.samples_dir, 'cube.json')
         self.cube = json.load(open(self.cube_file_name, 'r'))
-        self.cube_file_name = os.path.join(self.samples_dir, 'cube-blender-cc-1.json')
+        self.cube_file_name = os.path.join(self.samples_dir,
+                'cube-blender-cc-1.json')
         self.cube1 = json.load(open(self.cube_file_name, 'r'))
 
     def test_refined_vertex_location(self):