diff --git a/car.capnp b/car.capnp
index b27fb0f..76e7fce 100644
--- a/car.capnp
+++ b/car.capnp
@@ -335,6 +335,8 @@ struct CarControl {
     steer @2: Float32;
     steeringAngleDeg @3: Float32;
 
+    curvature @7: Float32;
+
     speed @6: Float32; # m/s
     accel @4: Float32; # m/s^2
     longControlState @5: LongControlState;
@@ -346,7 +348,6 @@ struct CarControl {
 
       startingDEPRECATED @3;
     }
-
   }
 
   struct CruiseControl {