diff --git a/tests/test_CK.py b/tests/test_CK.py
index <HASH>..<HASH> 100644
--- a/tests/test_CK.py
+++ b/tests/test_CK.py
@@ -19,5 +19,6 @@ class TestUtil(unittest.TestCase):
     def test_CKR(self):
         self.assertEqual(PyKCS11.CKR_VENDOR_DEFINED, 0x80000000)
 
+
 if __name__ == '__main__':
     unittest.main()
Fix pycodestyle errors

test_CK.py:<I>:1: E<I> expected 2 blank lines after class or function definition, found 1