diff --git a/tests/unit/browser/test_adblock.py b/tests/unit/browser/test_adblock.py
index ab40fa543..39c83d698 100644
--- a/tests/unit/browser/test_adblock.py
+++ b/tests/unit/browser/test_adblock.py
@@ -248,7 +248,8 @@ def test_successful_update(config_stub, basedir, download_stub,
 
 
 def test_parsing_multiple_hosts_on_line(config_stub, basedir, download_stub,
-                           data_tmpdir, tmpdir, win_registry, caplog):
+                                        data_tmpdir, tmpdir, win_registry,
+                                        caplog):
     """Ensure multiple hosts on a line get parsed correctly"""
     host_blocker = adblock.HostBlocker()
     bytes_host_line = ' '.join(BLOCKLIST_HOSTS).encode('utf-8')