diff --git a/projects/implicitron_trainer/configs/repro_base.yaml b/projects/implicitron_trainer/configs/repro_base.yaml
index 041ba47b..1cf08f07 100644
--- a/projects/implicitron_trainer/configs/repro_base.yaml
+++ b/projects/implicitron_trainer/configs/repro_base.yaml
@@ -6,7 +6,7 @@ architecture: generic
 visualize_interval: 0
 visdom_port: 8097
 data_source_args:
-  dataset_provider_class_type: JsonIndexDatasetMapProvider
+  dataset_map_provider_class_type: JsonIndexDatasetMapProvider
   data_loader_map_provider_SequenceDataLoaderMapProvider_args:
     batch_size: 10
     dataset_len: 1000
diff --git a/projects/implicitron_trainer/configs/repro_singleseq_base.yaml b/projects/implicitron_trainer/configs/repro_singleseq_base.yaml
index 177e6613..bde1abb5 100644
--- a/projects/implicitron_trainer/configs/repro_singleseq_base.yaml
+++ b/projects/implicitron_trainer/configs/repro_singleseq_base.yaml
@@ -10,7 +10,6 @@ data_source_args:
     images_per_seq_options:
     - 2
   dataset_map_provider_JsonIndexDatasetMapProvider_args:
-    dataset_name: singlesequence
     assert_single_seq: true
     n_frames_per_sequence: -1
     test_restrict_sequence_id: 0