diff --git a/vllm/entrypoints/openai/tool_parsers/hermes_tool_parser.py b/vllm/entrypoints/openai/tool_parsers/hermes_tool_parser.py
index fbd6801644f3b..8a056ef8a38e5 100644
--- a/vllm/entrypoints/openai/tool_parsers/hermes_tool_parser.py
+++ b/vllm/entrypoints/openai/tool_parsers/hermes_tool_parser.py
@@ -187,7 +187,7 @@ def extract_tool_calls_streaming(
                   and cur_tool_end_count > prev_tool_end_count):
                 diff = self.prev_tool_call_arr[self.current_tool_id].get(
                     "arguments")
-                if diff:                    
+                if diff:
                      diff = diff.encode('utf-8').decode(
                          'unicode_escape') if diff is str else diff
                      diff = json.dumps(