diff --git a/panda/python/__init__.py b/panda/python/__init__.py
index 7e3f07032..43b60b421 100644
--- a/panda/python/__init__.py
+++ b/panda/python/__init__.py
@@ -160,7 +160,7 @@ class Panda:
   F4_DEVICES = [HW_TYPE_BLACK_PANDA, HW_TYPE_DOS]
   SUPPORTED_DEVICES = H7_DEVICES + F4_DEVICES
 
-  INTERNAL_DEVICES = (HW_TYPE_TRES, HW_TYPE_CUATRO)
+  INTERNAL_DEVICES = (HW_TYPE_TRES, HW_TYPE_CUATRO, HW_TYPE_DOS)
 
   HARNESS_STATUS_NC = 0
   HARNESS_STATUS_NORMAL = 1