diff --git a/vllm/profiler/visualize_layerwise_profile.py b/vllm/profiler/visualize_layerwise_profile.py
index ea27152670d36..880d3f760d6b2 100644
--- a/vllm/profiler/visualize_layerwise_profile.py
+++ b/vllm/profiler/visualize_layerwise_profile.py
@@ -1,8 +1,8 @@
-import os
 import argparse
 import copy
 import json
 import math
+import os
 from pathlib import Path
 from typing import Any, List, Optional, Tuple
 
@@ -427,7 +427,7 @@ def make_plot_title_suffix(profile_json: dict) -> str:
 
     output_directory = args.output_directory if args.output_directory else Path(
         args.json_trace).parent
-    
+
     if not os.path.exists(output_directory):
         os.makedirs(output_directory)