diff --git a/Lib/test/test_descr.py b/Lib/test/test_descr.py
index 5759eff..3051e57 100644
--- a/Lib/test/test_descr.py
+++ b/Lib/test/test_descr.py
@@ -1770,6 +1770,7 @@
             ("__format__", format, format_impl, set(), {}),
             ("__floor__", math.floor, zero, set(), {}),
             ("__trunc__", math.trunc, zero, set(), {}),
+            ("__trunc__", int, zero, set(), {}),
             ("__ceil__", math.ceil, zero, set(), {}),
             ("__dir__", dir, empty_seq, set(), {}),
             ]