diff --git a/khaosz/trainer/trainer.py b/khaosz/trainer/trainer.py
index 823511c..89faf26 100644
--- a/khaosz/trainer/trainer.py
+++ b/khaosz/trainer/trainer.py
@@ -86,8 +86,7 @@ class Trainer:
                     context.iteration += 1
                     
                     # to make the loss normalized by accumulation steps
-                    stand_batch = self.train_config.accumulation_steps * self.train_config.nprocs
-                    stand_loss = loss / stand_batch
+                    stand_loss = loss / self.train_config.accumulation_steps
                     stand_loss.backward()
                     
                     self._call_callbacks('on_batch_end', context)