diff --git a/selfdrive/car/hyundai/interface.py b/selfdrive/car/hyundai/interface.py
index b9f6b8fc58..e214c796af 100644
--- a/selfdrive/car/hyundai/interface.py
+++ b/selfdrive/car/hyundai/interface.py
@@ -29,7 +29,7 @@ class CarInterface(CarInterfaceBase):
 
     if candidate in CANFD_CAR:
       # detect HDA2 with ADAS Driving ECU
-      if Ecu.adas in [fw.ecu for fw in car_fw]:
+      if 0x50 in fingerprint[6]:
         ret.flags |= HyundaiFlags.CANFD_HDA2.value
       else:
         # non-HDA2