diff --git a/tests/unit/browser/webkit/test_history.py b/tests/unit/browser/webkit/test_history.py
index d444c166c..4f1a3362d 100644
--- a/tests/unit/browser/webkit/test_history.py
+++ b/tests/unit/browser/webkit/test_history.py
@@ -66,9 +66,9 @@ def test_len(hist):
 def test_contains(hist):
     hist.add_url(QUrl('http://www.example.com/'), title='Title', atime=12345)
     assert 'http://www.example.com/' in hist
-    assert not 'www.example.com' in hist
-    assert not 'Title' in hist
-    assert not 12345 in hist
+    assert 'www.example.com' not in hist
+    assert 'Title' not in hist
+    assert 12345 not in hist
 
 
 def test_get_recent(hist):