diff --git a/src/llamafactory/data/collator.py b/src/llamafactory/data/collator.py
index 5e599653..cf60d944 100644
--- a/src/llamafactory/data/collator.py
+++ b/src/llamafactory/data/collator.py
@@ -152,7 +152,7 @@ class MultiModalDataCollatorForSeq2Seq(DataCollatorForSeq2Seq):
         features.update(mm_inputs)
         if isinstance(features.get("pixel_values"), list):  # for pixtral inputs
             features = features.data  # use default_collate() instead of BatchEncoding.to()
-        
+
         if "image_bound" in features:  # for minicpmv inputs
             features["position_ids"] = [torch.arange(input_ids.size(0)).long() for input_ids in features["input_ids"]]
             features["position_ids"] = pad_sequence(features["position_ids"], batch_first=True, padding_value=0)