diff --git a/configs/sparse_rcnn/_base_/sparse_rcnn_reader.yml b/configs/sparse_rcnn/_base_/sparse_rcnn_reader.yml
index f4226473d78168c407337ee156b25ab7b7462b67..248ca39b741b0607ab053a911a954ef2719964c2 100644
--- a/configs/sparse_rcnn/_base_/sparse_rcnn_reader.yml
+++ b/configs/sparse_rcnn/_base_/sparse_rcnn_reader.yml
@@ -39,6 +39,6 @@ TestReader:
   - Permute: {}
   batch_transforms:
   - PadBatch: {pad_to_stride: 32}
-  - Gt2SparseRCNNTarget: {train: false}
+  - Gt2SparseRCNNTarget: {}
   batch_size: 1
   shuffle: false
diff --git a/ppdet/data/transform/batch_operators.py b/ppdet/data/transform/batch_operators.py
index 81b5ef72874e805513e87231e525a2e6539ad03c..bacd53b75421bce4f2e95ba96ec56704ae4bd4be 100644
--- a/ppdet/data/transform/batch_operators.py
+++ b/ppdet/data/transform/batch_operators.py
@@ -767,7 +767,6 @@ class Gt2SparseRCNNTarget(BaseOperator):
                 sample["scale_factor_wh"] = np.array(
                     [sample["scale_factor"][1], sample["scale_factor"][0]],
                     dtype=np.float32)
-                sample.pop("scale_factor")
             else:
                 sample["scale_factor_wh"] = np.array(
                     [1.0, 1.0], dtype=np.float32)