diff --git a/src/utils/ppo.py b/src/utils/ppo.py
index 8a068876..7a69c43b 100644
--- a/src/utils/ppo.py
+++ b/src/utils/ppo.py
@@ -157,8 +157,8 @@ class PPOTrainerForLLaMA(PPOTrainer, PeftTrainer):
 
                 stats = self.step(queries, responses, rewards)
 
-                loss_meter.update(stats["ppo/loss/total"])
-                reward_meter.update(torch.tensor(rewards).sum().item(), n=len(rewards))
+                loss_meter.update(stats["ppo/loss/total"], n=len(rewards))
+                reward_meter.update(torch.stack(rewards).mean().item(), n=len(rewards))
 
                 if steps_trained == len_dataloader:
                     dataiter = iter(self.dataloader)