diff --git a/python/tests/test_1_online.py b/python/tests/test_1_online.py
index 42cb0f298..d9474c96c 100644
--- a/python/tests/test_1_online.py
+++ b/python/tests/test_1_online.py
@@ -1439,7 +1439,6 @@ def test_import_export_online_all(acfactory, tmpdir, data, lp):
 
     lp.sec("export all to {}".format(backupdir))
     with ac1.temp_plugin(ImexTracker()) as imex_tracker:
-
         ac1.stop_io()
         ac1.imex(backupdir.strpath, const.DC_IMEX_EXPORT_BACKUP)