diff --git a/python/sglang/multimodal_gen/runtime/models/dits/causal_wanvideo.py b/python/sglang/multimodal_gen/runtime/models/dits/causal_wanvideo.py
index 279aca9f2..1b5bdc28b 100644
--- a/python/sglang/multimodal_gen/runtime/models/dits/causal_wanvideo.py
+++ b/python/sglang/multimodal_gen/runtime/models/dits/causal_wanvideo.py
@@ -397,7 +397,7 @@ class CausalWanTransformerBlock(nn.Module):
         attn_output, _ = self.to_out(attn_output)
         attn_output = attn_output.squeeze(1)
 
-        null_shift = null_scale = torch.zeroes(
+        null_shift = null_scale = torch.zeros(
             (1,), device=hidden_states.device, dtype=hidden_states.dtype
         )
         norm_hidden_states, hidden_states = self.self_attn_residual_norm(