diff --git a/tests/unit/config/test_config.py b/tests/unit/config/test_config.py
index e32943252..43cfb797e 100644
--- a/tests/unit/config/test_config.py
+++ b/tests/unit/config/test_config.py
@@ -297,6 +297,7 @@ class TestDefaultConfig:
     def test_default_config(self):
         """Test validating of the default config."""
         conf = config.ConfigManager()
+        conf.read(None, None)
         conf._validate_all()
 
     def test_default_key_config(self):