diff --git a/python/test/test_chapman.py b/python/test/test_chapman.py
index 57de9557..90e93acf 100644
--- a/python/test/test_chapman.py
+++ b/python/test/test_chapman.py
@@ -1,6 +1,7 @@
 import unittest
 import musica
 
+
 class TestChapman(unittest.TestCase):
     def test_micm_solve(self):
         time_step = 200.0