diff --git a/selfdrive/car/interfaces.py b/selfdrive/car/interfaces.py
index 77912e478b..491138f788 100644
--- a/selfdrive/car/interfaces.py
+++ b/selfdrive/car/interfaces.py
@@ -456,6 +456,15 @@ class CarStateBase(ABC):
     return None
 
 
+SendCan = tuple[int, int, bytes, int]
+
+
+class CarControllerBase(ABC):
+  @abstractmethod
+  def update(self, CC, CS, now_nanos) -> tuple[car.CarControl.Actuators, list[SendCan]]:
+    pass
+
+
 INTERFACE_ATTR_FILE = {
   "FINGERPRINTS": "fingerprints",
   "FW_VERSIONS": "fingerprints",
@@ -519,12 +528,3 @@ class NanoFFModel:
       pred = x[0]
     pred = pred * (self.weights['output_norm_mat'][1] - self.weights['output_norm_mat'][0]) + self.weights['output_norm_mat'][0]
     return pred
-
-
-SendCan = tuple[int, int, bytes, int]
-
-
-class CarControllerBase(ABC):
-  @abstractmethod
-  def update(self, CC, CS, now_nanos) -> tuple[car.CarControl.Actuators, list[SendCan]]:
-    pass