diff --git a/src/_pytest/reports.py b/src/_pytest/reports.py
index b4160eb96..04cc52691 100644
--- a/src/_pytest/reports.py
+++ b/src/_pytest/reports.py
@@ -275,6 +275,8 @@ class TestReport(BaseReport):
     they fail).
     """
 
+    __test__ = False
+
     def __init__(
         self,
         nodeid,