diff --git a/pytest_django/runner.py b/pytest_django/runner.py
index c040b749..50ee8996 100644
--- a/pytest_django/runner.py
+++ b/pytest_django/runner.py
@@ -6,6 +6,8 @@
 class TestRunner:
     """A Django test runner which uses pytest to discover and run tests when using `manage.py test`."""
 
+    __test__ = False
+
     def __init__(
         self,
         *,