diff --git a/crates/ruff_formatter/src/lib.rs b/crates/ruff_formatter/src/lib.rs
index e98d998ef3..a6cd1f578e 100644
--- a/crates/ruff_formatter/src/lib.rs
+++ b/crates/ruff_formatter/src/lib.rs
@@ -780,7 +780,8 @@ where
     Context: FormatContext,
 {
     let mut state = FormatState::new(context);
-    let mut buffer = VecBuffer::with_capacity(arguments.items().len(), &mut state);
+    let mut buffer =
+        VecBuffer::with_capacity(state.context().source_code().as_str().len(), &mut state);
 
     buffer.write_fmt(arguments)?;
 
diff --git a/crates/ruff_python_formatter/src/expression/expr_compare.rs b/crates/ruff_python_formatter/src/expression/expr_compare.rs
index c01014ef80..07c85526cf 100644
--- a/crates/ruff_python_formatter/src/expression/expr_compare.rs
+++ b/crates/ruff_python_formatter/src/expression/expr_compare.rs
@@ -69,6 +69,11 @@ impl FormatNodeRule<ExprCompare> for FormatExprCompare {
 
         in_parentheses_only_group(&inner).fmt(f)
     }
+
+    fn fmt_dangling_comments(&self, _node: &ExprCompare, _f: &mut PyFormatter) -> FormatResult<()> {
+        // Node can not have dangling comments
+        Ok(())
+    }
 }
 
 impl NeedsParentheses for ExprCompare {
diff --git a/crates/ruff_python_formatter/src/expression/expr_name.rs b/crates/ruff_python_formatter/src/expression/expr_name.rs
index 2653f343b4..99d5374498 100644
--- a/crates/ruff_python_formatter/src/expression/expr_name.rs
+++ b/crates/ruff_python_formatter/src/expression/expr_name.rs
@@ -22,6 +22,11 @@ impl FormatNodeRule<ExprName> for FormatExprName {
 
         write!(f, [source_text_slice(*range, ContainsNewlines::No)])
     }
+
+    fn fmt_dangling_comments(&self, _node: &ExprName, _f: &mut PyFormatter) -> FormatResult<()> {
+        // Node cannot have dangling comments
+        Ok(())
+    }
 }
 
 impl NeedsParentheses for ExprName {