diff --git a/python/sglang/srt/layers/attention/nsa_backend.py b/python/sglang/srt/layers/attention/nsa_backend.py
index 5aa853010..172440336 100644
--- a/python/sglang/srt/layers/attention/nsa_backend.py
+++ b/python/sglang/srt/layers/attention/nsa_backend.py
@@ -1442,8 +1442,9 @@ class NativeSparseAttnBackend(AttentionBackend):
 
             # Requirements: H200/B200, short sequences, supported dtype, fits in chunk
             self.use_mha = (
-                device_sm == 90
-                or (device_sm >= 100 and device_sm < 110)  # SM90/SM100f only
+                (
+                    device_sm == 90 or (device_sm >= 100 and device_sm < 110)
+                )  # SM90/SM100 only
                 and max_kv_len <= self.nsa_index_topk  # Short enough for MHA
                 and forward_batch.token_to_kv_pool.dtype
                 in [torch.bfloat16, torch.float8_e4m3fn]