diff --git a/testing/test_warnings.py b/testing/test_warnings.py
index 99a5aff47..a26fb4597 100644
--- a/testing/test_warnings.py
+++ b/testing/test_warnings.py
@@ -296,8 +296,8 @@ def test_filterwarnings_mark_registration(testdir):
         import pytest
 
         @pytest.mark.filterwarnings('error')
-        def test_error():
-            assert True
+        def test_func():
+            pass
     """
     )
     result = testdir.runpytest("--strict")