diff --git a/crates/ruff_python_formatter/resources/test/fixtures/ruff/expression/unsplittable.py b/crates/ruff_python_formatter/resources/test/fixtures/ruff/expression/unsplittable.py
index a81cb284b773b..721939bcbefd8 100644
--- a/crates/ruff_python_formatter/resources/test/fixtures/ruff/expression/unsplittable.py
+++ b/crates/ruff_python_formatter/resources/test/fixtures/ruff/expression/unsplittable.py
@@ -57,3 +57,11 @@
 aaa = (
     bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb # awkward comment
 )
+
+def test():
+    m2m_also_quite_long_zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz = models.ManyToManyField(Person, blank=True)
+
+    m2m_also_quite_long_zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz = models.ManyToManyFieldAttributeChainField
+
+m2m_also_quite_long_zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz = models.ManyToManyField(Person, blank=True)
+m2m_also_quite_long_zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz = models.ManyToManyFieldAttributeChainFieeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeld
diff --git a/crates/ruff_python_formatter/src/expression/expr_call.rs b/crates/ruff_python_formatter/src/expression/expr_call.rs
index 0d2ee2e27581f..250dbe8d65714 100644
--- a/crates/ruff_python_formatter/src/expression/expr_call.rs
+++ b/crates/ruff_python_formatter/src/expression/expr_call.rs
@@ -66,10 +66,7 @@ impl NeedsParentheses for ExprCall {
         {
             OptionalParentheses::Multiline
         } else {
-            match self.func.needs_parentheses(self.into(), context) {
-                OptionalParentheses::BestFit => OptionalParentheses::IfFits,
-                parentheses => parentheses,
-            }
+            self.func.needs_parentheses(self.into(), context)
         }
     }
 }
diff --git a/crates/ruff_python_formatter/tests/snapshots/format@expression__unsplittable.py.snap b/crates/ruff_python_formatter/tests/snapshots/format@expression__unsplittable.py.snap
index 550117a361244..d10a307725725 100644
--- a/crates/ruff_python_formatter/tests/snapshots/format@expression__unsplittable.py.snap
+++ b/crates/ruff_python_formatter/tests/snapshots/format@expression__unsplittable.py.snap
@@ -63,6 +63,14 @@ for converter in connection.ops.get_db_converters(
 aaa = (
     bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb # awkward comment
 )
+
+def test():
+    m2m_also_quite_long_zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz = models.ManyToManyField(Person, blank=True)
+
+    m2m_also_quite_long_zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz = models.ManyToManyFieldAttributeChainField
+
+m2m_also_quite_long_zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz = models.ManyToManyField(Person, blank=True)
+m2m_also_quite_long_zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz = models.ManyToManyFieldAttributeChainFieeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeld
 ```
 
 ## Output
@@ -128,6 +136,22 @@ for converter in connection.ops.get_db_converters(
 
 
 aaa = bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb  # awkward comment
+
+
+def test():
+    m2m_also_quite_long_zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz = (
+        models.ManyToManyField(Person, blank=True)
+    )
+
+    m2m_also_quite_long_zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz = (
+        models.ManyToManyFieldAttributeChainField
+    )
+
+
+m2m_also_quite_long_zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz = (
+    models.ManyToManyField(Person, blank=True)
+)
+m2m_also_quite_long_zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz = models.ManyToManyFieldAttributeChainFieeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeld
 ```