diff --git a/Lib/test/test_weakref.py b/Lib/test/test_weakref.py
index 418481d..c2f8f19 100644
--- a/Lib/test/test_weakref.py
+++ b/Lib/test/test_weakref.py
@@ -601,6 +601,14 @@ class ReferencesTestCase(TestBase):
del c1, c2, C, D
gc.collect()
+ # In a debug build, this fails with:
+ # AssertionError: Lists differ: [] != ['C went away']
+ # Second list contains 1 additional elements.
+ # First extra element 0:
+ # C went away
+ # - []
+ # + ['C went away']
+ @unittest.skipIf(hasattr(sys, 'getobjects'), 'debug build')
@test_support.requires_type_collecting
def test_callback_in_cycle_resurrection(self):
import gc