diff --git a/xtuner/v1/train/rl_trainer.py b/xtuner/v1/train/rl_trainer.py
index 5d37bf8e0..398e0572d 100644
--- a/xtuner/v1/train/rl_trainer.py
+++ b/xtuner/v1/train/rl_trainer.py
@@ -546,7 +546,7 @@ def _rollout_step(self, rollout_idx: int, step_timer_dict: dict) -> RolloutInfo:
 
         rollout_info: RolloutInfo = {
             "data_groups": dataflow_result["data_groups"],
-            "multimodal_train_infos": dataflow_result.get("multimodal_train_infos", None),
+            "multimodal_train_infos": dataflow_result.get("mm_train_infos", None),
             "task_time": dataflow_result.get("metrics", {}),
             "replay_buffer_info": ray.get(self._rollout_dataflow.get_replaybuffer_status.remote()),
         }