Index: lxml-4.2.0/src/lxml/tests/test_threading.py
===================================================================
--- lxml-4.2.0.orig/src/lxml/tests/test_threading.py
+++ lxml-4.2.0/src/lxml/tests/test_threading.py
@@ -153,7 +153,7 @@ class ThreadingTestCase(HelperTestCase):
             self.assertTrue(len(log))
             if last_log is not None:
                 self.assertEqual(len(last_log), len(log))
-            self.assertEqual(4, len(log))
+            self.assertEqual(2, len(log))
             for error in log:
                 self.assertTrue(':ERROR:XSLT:' in str(error))
             last_log = log