diff --git a/sphinx_json_schema_spec/__init__.py b/sphinx_json_schema_spec/__init__.py
index ba0999f..0a82c8c 100644
--- a/sphinx_json_schema_spec/__init__.py
+++ b/sphinx_json_schema_spec/__init__.py
@@ -146,7 +146,7 @@ def keyword(name, raw_text, text, lineno, inliner):
             if header is None:
                 header = spec.get_element_by_id(
                     f"name-the-{lower}-keyword",
-                    None
+                    None,
                 )
 
             if header is not None: