diff --git a/cvat/apps/dataset_manager/formats/mot.py b/cvat/apps/dataset_manager/formats/mot.py
index f9e7a02c4cf8..1efb9b578c6c 100644
--- a/cvat/apps/dataset_manager/formats/mot.py
+++ b/cvat/apps/dataset_manager/formats/mot.py
@@ -45,6 +45,17 @@ def _import(src_file, task_data):
 
                 track_id = ann.attributes.get('track_id')
                 if track_id is None:
+                    # Extension. Import regular boxes:
+                    task_data.add_shape(task_data.LabeledShape(
+                        type='rectangle',
+                        label=label_cat.items[ann.label].name,
+                        points=ann.points,
+                        occluded=ann.attributes.get('occluded') == True,
+                        z_order=ann.z_order,
+                        group=0,
+                        frame=frame_number,
+                        attributes=[],
+                    ))
                     continue
 
                 shape = task_data.TrackedShape(
diff --git a/cvat/apps/engine/tests/_test_rest_api.py b/cvat/apps/engine/tests/_test_rest_api.py
index fcd3d59a1d7f..aa9e0e77341d 100644
--- a/cvat/apps/engine/tests/_test_rest_api.py
+++ b/cvat/apps/engine/tests/_test_rest_api.py
@@ -3119,6 +3119,7 @@ def _get_initial_annotation(annotation_format):
                 annotations["tracks"] = rectangle_tracks_wo_attrs
 
             elif annotation_format == "MOT 1.1":
+                annotations["shapes"] = rectangle_shapes_wo_attrs
                 annotations["tracks"] = rectangle_tracks_wo_attrs
 
             elif annotation_format == "LabelMe 3.0":