diff --git a/python/sglang/bench_serving.py b/python/sglang/bench_serving.py
index ad5017612..18003e4d7 100644
--- a/python/sglang/bench_serving.py
+++ b/python/sglang/bench_serving.py
@@ -993,6 +993,8 @@ async def benchmark(
         async with semaphore:
             return await request_func(request_func_input=request_func_input, pbar=pbar)
 
+    if not hasattr(args, "warmup_requests"):
+        args.warmup_requests = 1
     # Warmup
     print(f"Starting warmup with {args.warmup_requests} sequences...")
 
diff --git a/scripts/playground/bench_speculative.py b/scripts/playground/bench_speculative.py
index ff2e97262..a8676556c 100644
--- a/scripts/playground/bench_speculative.py
+++ b/scripts/playground/bench_speculative.py
@@ -85,7 +85,7 @@ def send_one_batch(base_url, num_prompts, batch_size):
             request_rate=float("inf"),
             max_concurrency=batch_size,
             disable_tqdm=False,
-            lora_name=None,
+            lora_names=None,
             extra_request_body={},
             profile=None,
         )