diff --git a/tests/tools/test_opener.py b/tests/tools/test_opener.py
index 6d37343b..43de02d2 100644
--- a/tests/tools/test_opener.py
+++ b/tests/tools/test_opener.py
@@ -58,8 +58,8 @@ def fake_data(self, n_samples):
     assert o.get_data() == "data_class"
 
 
-def test_load_opener_from_path(valid_opener_code):
-    dirpath = tmp_cwd / "myopener"
+def test_load_opener_from_path(tmp_dir, valid_opener_code):
+    dirpath = tmp_dir / "myopener"
     dirpath.mkdir()
     path = dirpath / "my_opener.py"
     path.write_text(valid_opener_code)