diff --git a/selfdrive/car/car_helpers.py b/selfdrive/car/car_helpers.py
index 7af2cac996..c7737bcea5 100644
--- a/selfdrive/car/car_helpers.py
+++ b/selfdrive/car/car_helpers.py
@@ -1,15 +1,14 @@
 import os
 import time
 
-from openpilot.selfdrive.car import carlog
+from openpilot.selfdrive.car import carlog, gen_empty_fingerprint
 from openpilot.selfdrive.car.can_definitions import CanRecvCallable, CanSendCallable
 from openpilot.selfdrive.car.data_structures import CarParams
-from openpilot.selfdrive.car.interfaces import get_interface_attr
 from openpilot.selfdrive.car.fingerprints import eliminate_incompatible_cars, all_legacy_fingerprint_cars
-from openpilot.selfdrive.car.vin import get_vin, is_valid_vin, VIN_UNKNOWN
 from openpilot.selfdrive.car.fw_versions import ObdCallback, get_fw_versions_ordered, get_present_ecus, match_fw_to_car
+from openpilot.selfdrive.car.interfaces import get_interface_attr
 from openpilot.selfdrive.car.mock.values import CAR as MOCK
-from openpilot.selfdrive.car import gen_empty_fingerprint
+from openpilot.selfdrive.car.vin import get_vin, is_valid_vin, VIN_UNKNOWN
 
 FRAME_FINGERPRINT = 100  # 1s