diff --git a/tests/components/mqtt/conftest.py b/tests/components/mqtt/conftest.py
index 696ad28b735..9fe04c459fe 100644
--- a/tests/components/mqtt/conftest.py
+++ b/tests/components/mqtt/conftest.py
@@ -8,4 +8,4 @@ from tests.components.light.conftest import mock_light_profiles  # noqa: F401
 
 @pytest.fixture(autouse=True)
 def patch_hass_config(mock_hass_config: None) -> None:
-    """Patch configuration].yaml."""
+    """Patch configuration.yaml."""