diff --git a/scripts/playground/bench_speculative.py b/scripts/playground/bench_speculative.py
index e28ba92e4ad2..29dc1339c1ab 100644
--- a/scripts/playground/bench_speculative.py
+++ b/scripts/playground/bench_speculative.py
@@ -106,6 +106,8 @@ def send_one_batch(base_url, num_prompts, batch_size, tokenizer, is_multimodal):
             max_concurrency=batch_size,
             disable_tqdm=False,
             lora_names=None,
+            lora_request_distribution=None,
+            lora_zipf_alpha=None,
             extra_request_body={},
             profile=None,
         )