diff --git a/python/llm/src/ipex_llm/transformers/npu_models/convert_mp.py b/python/llm/src/ipex_llm/transformers/npu_models/convert_mp.py
index 12a4da5b512..71986352753 100644
--- a/python/llm/src/ipex_llm/transformers/npu_models/convert_mp.py
+++ b/python/llm/src/ipex_llm/transformers/npu_models/convert_mp.py
@@ -184,7 +184,8 @@ def optimize_llm_pre(model: torch.nn.Module, qtype, mixed_precision,
                 new_lm_head = SlicedLMHead(model.lm_head.weight, split_num=split_num,
                                            bias=model.lm_head.bias, use_split=True,
                                            group_size=quantization_group_size,
-                                           asym=(qtype == "asym_int4_rtn") and (not mixed_precision))
+                                           asym=(qtype == "asym_int4_rtn") and
+                                                (not mixed_precision))
             del model.lm_head
             model.lm_head = new_lm_head