diff --git a/vllm/engine/llm_engine.py b/vllm/engine/llm_engine.py
index 7e9553d839ce..53a680580390 100644
--- a/vllm/engine/llm_engine.py
+++ b/vllm/engine/llm_engine.py
@@ -101,7 +101,7 @@ def __init__(
             "skip_tokenizer_init=%s, tokenizer_mode=%s, revision=%s, "
             "tokenizer_revision=%s, trust_remote_code=%s, dtype=%s, "
             "max_seq_len=%d, download_dir=%r, load_format=%s, "
-            "tensor_parallel_size=%d, disable_custom_all_reduce=%s"
+            "tensor_parallel_size=%d, disable_custom_all_reduce=%s, "
             "quantization=%s, enforce_eager=%s, kv_cache_dtype=%s, "
             "quantization_param_path=%s, device_config=%s, "
             "decoding_config=%r, seed=%d)",