diff --git a/mmcv/ops/csrc/pytorch/nms_rotated.cpp b/mmcv/ops/csrc/pytorch/nms_rotated.cpp
index 3cbcb0b09ba..ed669169a3f 100644
--- a/mmcv/ops/csrc/pytorch/nms_rotated.cpp
+++ b/mmcv/ops/csrc/pytorch/nms_rotated.cpp
@@ -31,7 +31,7 @@ Tensor nms_rotated(const Tensor dets, const Tensor scores, const Tensor order,
 #else
     AT_ERROR("Not compiled with GPU support");
 #endif
-  } else if(dets.device().type() == at::kXLA) {
+  } else if (dets.device().type() == at::kXLA) {
 #ifdef MMCV_WITH_NPU
     return nms_rotated_npu(dets, scores, labels, iou_threshold);
 #else