diff --git a/Lib/test/test_capi.py b/Lib/test/test_capi.py
index a732f4f..b3600eb 100644
--- a/Lib/test/test_capi.py
+++ b/Lib/test/test_capi.py
@@ -329,8 +329,9 @@
         """)
         rc, out, err = assert_python_failure('-c', code)
         self.assertRegex(err,
-                         br'_testcapimodule\.c:[0-9]+ object at .* '
-                         br'has negative ref count', err)
+                         br'_testcapimodule\.c:[0-9]+: '
+                         br'_Py_NegativeRefcount: Assertion ".*" failed; '
+                         br'object has negative ref count')
 
 
 class TestPendingCalls(unittest.TestCase):