diff --git a/examples/convert/convert_hf_to_st.py b/examples/convert/convert_hf_to_st.py
index 876e06893..8af4fb466 100644
--- a/examples/convert/convert_hf_to_st.py
+++ b/examples/convert/convert_hf_to_st.py
@@ -26,7 +26,7 @@ def main():
 
     hf_model = Transformer(args.model_name_or_path, tokenizer_args=tokenizer_kwargs, torch_dtype=args.torch_dtype)
     pooler = Pooling(hf_model.get_word_embedding_dimension(), pooling_mode=args.pooling_mode)
-    model = SentenceTransformer(modules=[hf_model, pooler], device='cpu')
+    model = SentenceTransformer(modules=[hf_model, pooler], device="cpu")
 
     model.save(args.save_path)