diff --git a/tests/others/test_config.py b/tests/others/test_config.py
index 3492ec3508df..eea7bfdb4442 100644
--- a/tests/others/test_config.py
+++ b/tests/others/test_config.py
@@ -270,7 +270,7 @@ def test_use_default_values(self):
             config.save_config(tmpdirname)
 
             # now loading it with SampleObject2 should put f into `_use_default_values`
-            config = SampleObject2.from_config(tmpdirname)
+            config = SampleObject2.from_config(SampleObject2.load_config(tmpdirname))
 
             assert "f" in config._use_default_values
             assert config.f == [1, 3]