diff --git a/mmcv/ops/csrc/pytorch/npu/chamfer_distance_npu.cpp b/mmcv/ops/csrc/pytorch/npu/chamfer_distance_npu.cpp
index 2ad0897f316..800e636945d 100644
--- a/mmcv/ops/csrc/pytorch/npu/chamfer_distance_npu.cpp
+++ b/mmcv/ops/csrc/pytorch/npu/chamfer_distance_npu.cpp
@@ -4,7 +4,7 @@ using namespace NPU_NAME_SPACE;
 using namespace std;
 
 void chamfer_distance_forward_npu(Tensor XYZ1, Tensor XYZ2, Tensor dist1,
-                                    Tensor dist2, Tensor idx1, Tensor idx2) {
+                                  Tensor dist2, Tensor idx1, Tensor idx2) {
   at::Tensor xyz1 = at::ones_like(XYZ1);
   at::Tensor xyz2 = at::ones_like(XYZ2);
   xyz1 = XYZ1.transpose(1, 2).transpose(0, 1);