diff --git a/Lib/test/test_importlib/source/test_file_loader.py b/Lib/test/test_importlib/source/test_file_loader.py
index 25a3dae6722..2d415f985dc 100644
--- a/Lib/test/test_importlib/source/test_file_loader.py
+++ b/Lib/test/test_importlib/source/test_file_loader.py
@@ -190,6 +190,7 @@ def test_file_from_empty_string_dir(self):
             if os.path.exists(pycache):
                 shutil.rmtree(pycache)
 
+    @source_util.writes_bytecode_files
     def test_timestamp_overflow(self):
         # When a modification timestamp is larger than 2**32, it should be
         # truncated rather than raise an OverflowError.