diff --git a/cereal/log.capnp b/cereal/log.capnp
index cf91e017e6..88a33567b1 100644
--- a/cereal/log.capnp
+++ b/cereal/log.capnp
@@ -560,6 +560,7 @@ struct PandaState @0xa7649e2575e4591e {
   # reserved for forks building alternate experiences.
   controlsAllowedLateral @38 :Bool;
   controlsAllowedLongitudinal @39 :Bool;
+  test123 @40 :Bool;
 
   enum FaultStatus {
     none @0;