diff --git a/src/black/__init__.py b/src/black/__init__.py
index c2a4bda..c2b0ad4 100644
--- a/src/black/__init__.py
+++ b/src/black/__init__.py
@@ -2712,7 +2712,8 @@ def init_st(ST: Type[StringTransformer]) -> StringTransformer:
     transformers: List[Transformer]
     if (
         not line.contains_uncollapsable_type_comments()
-        and not (line.should_split or line.magic_trailing_comma)
+        and not line.should_split
+        and not line.magic_trailing_comma
         and (
             is_line_short_enough(line, line_length=mode.line_length, line_str=line_str)
             or line.contains_unsplittable_type_ignore()