diff --git a/docs/usage/configuration/signatures.md b/docs/usage/configuration/signatures.md
index 822c8f6d..9d978fb5 100644
--- a/docs/usage/configuration/signatures.md
+++ b/docs/usage/configuration/signatures.md
@@ -36,13 +36,14 @@ plugins:
 import markdown
 import markupsafe
 
+
 def convert(text: str, md: markdown.Markdown) -> markupsafe.Markup:
     """Convert text to Markdown.
 
     Parameters:
         text: The text to convert.
         md: A Markdown instance.
-    
+
     Returns:
         Converted markup.
     """
diff --git a/duties.py b/duties.py
index a4eba4a7..9b93ca81 100644
--- a/duties.py
+++ b/duties.py
@@ -224,7 +224,7 @@ def format(ctx: Context) -> None:
     )
     ctx.run(black.run(*PY_SRC_LIST, config="config/black.toml"), title="Formatting code")
     ctx.run(
-        blacken_docs.run(*PY_SRC_LIST, "docs", exts=["py", "md"], line_length=120),
+        blacken_docs.run(*PY_SRC_LIST, "docs", exts=["py", "md"], line_length=120, skip_errors=True),
         title="Formatting docs",
         nofail=True,
     )