diff --git a/codeflash/languages/javascript/code_replacer.py b/codeflash/languages/javascript/code_replacer.py
index 83c96ec6a..a3dd09c28 100644
--- a/codeflash/languages/javascript/code_replacer.py
+++ b/codeflash/languages/javascript/code_replacer.py
@@ -2,6 +2,7 @@
 
 from __future__ import annotations
 
+from operator import attrgetter
 from typing import TYPE_CHECKING
 
 from codeflash.cli_cmds.console import logger
@@ -103,9 +104,7 @@ def _filter_new_declarations(optimized_declarations: list, existing_names: set[s
     seen_sources: set[str] = set()
 
     # Sort by line number to maintain order from optimized code
-    sorted_declarations = sorted(optimized_declarations, key=lambda d: d.start_line)
-
-    for decl in sorted_declarations:
+    for decl in sorted(optimized_declarations, key=attrgetter("start_line")):
         if decl.name not in existing_names and decl.source_code not in seen_sources:
             new_declarations.append(decl)
             seen_sources.add(decl.source_code)