diff --git a/vllm/entrypoints/openai/tool_parsers/phi4mini_tool_parser.py b/vllm/entrypoints/openai/tool_parsers/phi4mini_tool_parser.py
index b403a146716d..00690ad79a7a 100644
--- a/vllm/entrypoints/openai/tool_parsers/phi4mini_tool_parser.py
+++ b/vllm/entrypoints/openai/tool_parsers/phi4mini_tool_parser.py
@@ -68,8 +68,8 @@ class Phi4MiniJsonToolParser(ToolParser):
                              len(function_call_arr))
             except json.JSONDecodeError as e:
                 logger.error(
-                    "Failed to parse function calls from model output: %s. "
-                    "Error: %s", model_output, str(e))
+                    "Failed to parse function calls from model output. "
+                    "Error: %s", str(e))
 
             tool_calls: list[ToolCall] = [
                 ToolCall(