diff --git a/src/click/core.py b/src/click/core.py
index 0a6729cbb..72a33028f 100644
--- a/src/click/core.py
+++ b/src/click/core.py
@@ -2738,9 +2738,7 @@ def _write_opts(opts: t.Sequence[str]) -> str:
                 _("env var: {var}").format(var=", ".join(extra["envvars"]))
             )
         if "default" in extra:
-            extra_items.append(
-                _("default: {default}").format(default=extra["default"])
-            )
+            extra_items.append(_("default: {default}").format(default=extra["default"]))
         if "range" in extra:
             extra_items.append(extra["range"])
         if "required" in extra: