diff --git a/deeplink_ext/internlm_ops/rms_norm/deeplink.py b/deeplink_ext/internlm_ops/rms_norm/deeplink.py
index 82142e17..793bc02e 100644
--- a/deeplink_ext/internlm_ops/rms_norm/deeplink.py
+++ b/deeplink_ext/internlm_ops/rms_norm/deeplink.py
@@ -28,7 +28,7 @@ def backward(ctx, grad_output):
         grad_input = torch.empty_like(hidden_states)
         grad_weight = torch.empty_like(weight)
         grad_bias = torch.empty_like(bias)
-        
+
         ext.rms_norm_backward(
             grad_input,
             grad_weight,