diff --git a/configs/yolov3_darknet_voc_diouloss.yml b/configs/yolov3_darknet_voc_diouloss.yml
index 52f5d0082238b45d3fa290c4c51e04bcd92c4d18..62c912dc1dcdf3731271c1cfec8c6d90520bc86b 100644
--- a/configs/yolov3_darknet_voc_diouloss.yml
+++ b/configs/yolov3_darknet_voc_diouloss.yml
@@ -9,7 +9,7 @@ map_type: 11point
 pretrain_weights: https://paddle-imagenet-models-name.bj.bcebos.com/DarkNet53_pretrained.tar
 weights: output/yolov3_darknet_voc/model_final
 num_classes: 20
-use_fine_grained_loss: false
+use_fine_grained_loss: true
 
 YOLOv3:
   backbone: DarkNet