diff --git a/slime/rollout/sglang_rollout.py b/slime/rollout/sglang_rollout.py
index b2a3de5678..44c03858ff 100644
--- a/slime/rollout/sglang_rollout.py
+++ b/slime/rollout/sglang_rollout.py
@@ -573,10 +573,11 @@ async def eval_rollout_single_dataset(
     for coro in asyncio.as_completed(tasks):
         sample = await coro
         if do_print:
+            logged_sample = sample[0] if isinstance(sample, list) else sample
             logger.info(
                 "eval_rollout_single_dataset example data: "
-                f"{[str(sample.prompt) + sample.response]} "
-                f"reward={sample.reward}"
+                f"{[str(logged_sample.prompt) + logged_sample.response]} "
+                f"reward={logged_sample.reward}"
             )
             do_print = False
         if isinstance(sample, list):