diff --git a/crates/ruff_python_formatter/resources/test/fixtures/ruff/statement/match.py b/crates/ruff_python_formatter/resources/test/fixtures/ruff/statement/match.py
index f24f9416cc..af1e25c96f 100644
--- a/crates/ruff_python_formatter/resources/test/fixtures/ruff/statement/match.py
+++ b/crates/ruff_python_formatter/resources/test/fixtures/ruff/statement/match.py
@@ -109,6 +109,11 @@ match long_lines:
     ):  # another comment
         pass
 
+    case {
+        "long_long_long_key": str(long_long_long_key)
+    } if value := "long long long long long long long long long long long value":
+        pass
+
 
 match pattern_comments:
     case (
diff --git a/crates/ruff_python_formatter/src/expression/expr_named_expr.rs b/crates/ruff_python_formatter/src/expression/expr_named_expr.rs
index 3fe831c3a0..fff39ec4f2 100644
--- a/crates/ruff_python_formatter/src/expression/expr_named_expr.rs
+++ b/crates/ruff_python_formatter/src/expression/expr_named_expr.rs
@@ -3,7 +3,9 @@ use ruff_python_ast::AnyNodeRef;
 use ruff_python_ast::ExprNamedExpr;
 
 use crate::comments::{dangling_comments, SourceComment};
-use crate::expression::parentheses::{NeedsParentheses, OptionalParentheses};
+use crate::expression::parentheses::{
+    in_parentheses_only_soft_line_break_or_space, NeedsParentheses, OptionalParentheses,
+};
 use crate::prelude::*;
 
 #[derive(Default)]
@@ -24,7 +26,10 @@ impl FormatNodeRule<ExprNamedExpr> for FormatExprNamedExpr {
         write!(
             f,
             [
-                group(&format_args!(target.format(), soft_line_break_or_space())),
+                group(&format_args![
+                    target.format(),
+                    in_parentheses_only_soft_line_break_or_space()
+                ]),
                 token(":=")
             ]
         )?;
diff --git a/crates/ruff_python_formatter/tests/snapshots/format@statement__match.py.snap b/crates/ruff_python_formatter/tests/snapshots/format@statement__match.py.snap
index dad7a3c526..cd64f26de6 100644
--- a/crates/ruff_python_formatter/tests/snapshots/format@statement__match.py.snap
+++ b/crates/ruff_python_formatter/tests/snapshots/format@statement__match.py.snap
@@ -115,6 +115,11 @@ match long_lines:
     ):  # another comment
         pass
 
+    case {
+        "long_long_long_key": str(long_long_long_key)
+    } if value := "long long long long long long long long long long long value":
+        pass
+
 
 match pattern_comments:
     case (
@@ -696,6 +701,11 @@ match long_lines:
     ):  # another comment
         pass
 
+    case {
+        "long_long_long_key": str(long_long_long_key)
+    } if value := "long long long long long long long long long long long value":
+        pass
+
 
 match pattern_comments:
     case (