diff --git a/modelscope/pipelines/cv/image_driving_perception_pipeline.py b/modelscope/pipelines/cv/image_driving_perception_pipeline.py
index 0599277b..099d990c 100644
--- a/modelscope/pipelines/cv/image_driving_perception_pipeline.py
+++ b/modelscope/pipelines/cv/image_driving_perception_pipeline.py
@@ -98,7 +98,7 @@ class ImageDrivingPerceptionPipeline(Pipeline):
                 det[:, :4] = scale_coords(inputs['img_hw'], det[:, :4],
                                           (h, w)).round()
 
-        results_dict[OutputKeys.BOXES].append(det[:, :4].cpu().numpy())
+        results_dict[OutputKeys.BOXES] = (det[:, :4].cpu().numpy())
         results_dict[OutputKeys.MASKS].append(da_seg_mask)
         results_dict[OutputKeys.MASKS].append(ll_seg_mask)
         return results_dict