diff --git a/tests/test_online.py b/tests/test_online.py
index e7efc6ec6d5727a4201baf51ee722bfcdeb73100..8684f6c41e4e97e1bb71d1801956372d5210f615 100644
--- a/tests/test_online.py
+++ b/tests/test_online.py
@@ -785,7 +785,6 @@ class TestSummarysliceReader(unittest.TestCase):
         assert first_frame_index == sr[0].headers[0].frame_index
         assert last_frame_index == sr[1].headers[0].frame_index
 
-
         assert last_frame_index == sr[-1].headers[0].frame_index
         assert first_frame_index == sr[-2].headers[0].frame_index