1 files changed, 3 insertions, 0 deletions
diff --git a/vehicle.h b/vehicle.h
index 71e5c8c41..ecc250963 100644
--- a/vehicle.h
+++ b/vehicle.h
@@ -88,6 +88,9 @@ enum {
 
 	// used to store if a wagon is powered or not
 	VRF_POWEREDWAGON = 3,
+
+	// used to reverse the visible direction of the vehicle
+	VRF_REVERSE_DIRECTION = 4,
 };
 
 typedef struct VehicleAir {