diff --git a/scenarionet/converter/nuplan/utils.py b/scenarionet/converter/nuplan/utils.py
index f503ffe..87f41b2 100644
--- a/scenarionet/converter/nuplan/utils.py
+++ b/scenarionet/converter/nuplan/utils.py
@@ -191,7 +191,9 @@ def extract_map_features(map_api, center, radius=250):
                     continue
                 left = lane_meta_data.left_boundary
                 if left.id not in ret:
-                    line_type = get_line_type(int(boundaries.loc[[str(left.id)]]["boundary_type_fid"]))
+                    # only broken line in nuPlan data
+                    # line_type = get_line_type(int(boundaries.loc[[str(left.id)]]["boundary_type_fid"]))
+                    line_type = MetaDriveType.LINE_BROKEN_SINGLE_WHITE
                     if line_type != MetaDriveType.LINE_UNKNOWN:
                         ret[left.id] = {SD.TYPE: line_type, SD.POLYLINE: get_points_from_boundary(left, center)}
 
diff --git a/scenarionet/examples/convert_nuplan.py b/scenarionet/examples/convert_nuplan.py
index ddb94d6..0d65fd4 100644
--- a/scenarionet/examples/convert_nuplan.py
+++ b/scenarionet/examples/convert_nuplan.py
@@ -2,8 +2,9 @@
 This script aims to convert nuplan scenarios to ScenarioDescription, so that we can load any nuplan scenarios into
 MetaDrive.
 """
-from scenarionet import SCENARIONET_DATASET_PATH
 import os
+
+from scenarionet import SCENARIONET_DATASET_PATH
 from scenarionet.converter.nuplan.utils import get_nuplan_scenarios, convert_nuplan_scenario
 from scenarionet.converter.utils import write_to_directory
 
@@ -45,14 +46,15 @@ if __name__ == "__main__":
         "scenario_filter.timestamp_threshold_s=20",  # minial scenario duration (s)
     ]
     force_overwrite = True
-    output_path = os.path.join(SCENARIONET_DATASET_PATH, "nuplan")
-    version = 'v1.2'
+    dataset_name = "nuplan"
+    output_path = os.path.join(SCENARIONET_DATASET_PATH, dataset_name)
+    version = 'v1.1'
 
     scenarios = get_nuplan_scenarios(dataset_params)
     write_to_directory(convert_func=convert_nuplan_scenario,
                        scenarios=scenarios,
                        output_path=output_path,
                        dataset_version=version,
-                       dataset_name="nuscenes",
+                       dataset_name=dataset_name,
                        force_overwrite=force_overwrite,
                        )
diff --git a/scenarionet/examples/convert_nuscenes.py b/scenarionet/examples/convert_nuscenes.py
index 4a003b5..4c45f02 100644
--- a/scenarionet/examples/convert_nuscenes.py
+++ b/scenarionet/examples/convert_nuscenes.py
@@ -13,7 +13,8 @@ from scenarionet.converter.nuscenes.utils import convert_nuscenes_scenario
 from scenarionet.converter.utils import write_to_directory
 
 if __name__ == "__main__":
-    output_path = os.path.join(SCENARIONET_DATASET_PATH, "nuscenes")
+    dataset_name = "nuscenes"
+    output_path = os.path.join(SCENARIONET_DATASET_PATH, dataset_name)
     version = 'v1.0-mini'
     dataroot = '/home/shady/data/nuscenes'
     force_overwrite = True
@@ -24,6 +25,6 @@ if __name__ == "__main__":
                        scenarios=scenarios,
                        output_path=output_path,
                        dataset_version=version,
-                       dataset_name="nuscenes",
+                       dataset_name=dataset_name,
                        force_overwrite=force_overwrite,
                        nuscenes=nusc)