diff --git a/configs/dcn/yolov3_r50vd_dcn_obj365_pretrained_coco.yml b/configs/dcn/yolov3_r50vd_dcn_obj365_pretrained_coco.yml
index 707e928df2b7a2e60b3b7899e80abb620fe6e5bd..db5de3a9c854c9684186477c6dcac12c7d03e280 100755
--- a/configs/dcn/yolov3_r50vd_dcn_obj365_pretrained_coco.yml
+++ b/configs/dcn/yolov3_r50vd_dcn_obj365_pretrained_coco.yml
@@ -129,6 +129,15 @@ EvalReader:
     - !Permute
       to_bgr: false
       channel_first: True
+    # Gt2YoloTarget is only used when use_fine_grained_loss set as true,
+    # this operator will be deleted automatically if use_fine_grained_loss
+    # is set as false
+    - !Gt2YoloTarget
+      anchor_masks: [[6, 7, 8], [3, 4, 5], [0, 1, 2]]
+      anchors: [[10, 13], [16, 30], [33, 23],
+                [30, 61], [62, 45], [59, 119],
+                [116, 90], [156, 198], [373, 326]]
+      downsample_ratios: [32, 16, 8]
   batch_size: 8
   drop_empty: false
   worker_num: 8