diff --git a/cereal/car.capnp b/cereal/car.capnp
index 002b825e82930a..393451a33e3158 100644
--- a/cereal/car.capnp
+++ b/cereal/car.capnp
@@ -475,7 +475,7 @@ struct CarParams {
   radarTimeStep @45: Float32 = 0.05;  # time delta between radar updates, 20Hz is very standard
   fingerprintSource @49: FingerprintSource;
   networkLocation @50 :NetworkLocation;  # Where Panda/C2 is integrated into the car's CAN network
-  smartDsu @67 :Bool;  # true if sDSU is detected
+  smartDsu @68 :Bool;  # true if sDSU is detected
 
   wheelSpeedFactor @63 :Float32; # Multiplier on wheels speeds to computer actual speeds