diff --git a/applications/ColossalChat/coati/distributed/producer.py b/applications/ColossalChat/coati/distributed/producer.py
index eb0621180..9f9ed73a0 100644
--- a/applications/ColossalChat/coati/distributed/producer.py
+++ b/applications/ColossalChat/coati/distributed/producer.py
@@ -94,7 +94,7 @@ class BaseProducer:
         print(
             f"[P{self.producer_idx}] num_valid_microbatches {num_valid_microbatches}, nmb: {self.num_microbatches}, dl: {len(self.dataloader)}"
         )
-        for episode in range(self.num_episodes):
+        for episode in range(self.num_episodes): 
             self.dataloader.sampler.set_epoch(episode)
             for i, batch in enumerate(self.dataloader):
                 if i >= num_valid_microbatches: