diff --git a/tests/test_utils_path.py b/tests/test_utils_path.py
index c9f9e5034..c6300f21e 100644
--- a/tests/test_utils_path.py
+++ b/tests/test_utils_path.py
@@ -88,15 +88,17 @@ def test_filter_files_excludes_directories():
     f3 = Path(os.path.join(tmp_dir, "y.log"))
     f2 = Path(os.path.join(tmp_dir, "y.txt"))
     d1 = Path(os.path.join(tmp_dir, "dir"))
+    f4 = Path(os.path.join(tmp_dir, "y.json"))
 
     f1.touch()
     f3.touch()
     f2.touch()
     d1.mkdir()
+    f4.touch()
 
-    result = filter_files([f1, f3, f2, d1])
+    result = filter_files([f1, f3, f2, d1, f4])
     result_names = sorted([p.name for p in result])
 
-    assert result_names == ["x.txt", "y.log", "y.txt"]
+    assert result_names == ["x.txt", "y.log", "y.txt", "y.json"]
 
     shutil.rmtree(tmp_dir)