diff --git a/libraries/AP_Vehicle/AP_Vehicle.h b/libraries/AP_Vehicle/AP_Vehicle.h
index 80674c072b..42ae6a3b30 100644
--- a/libraries/AP_Vehicle/AP_Vehicle.h
+++ b/libraries/AP_Vehicle/AP_Vehicle.h
@@ -38,6 +38,7 @@ public:
         AP_Int16 pitch_limit_min_cd;        
         AP_Int8  autotune_level;
         AP_Int16 land_pitch_cd;
+        AP_Int8  stall_prevention;
     };
 
     /*