diff --git a/newgrf.c b/newgrf.c index 70bfdb5ab4..8a687220b8 100644 --- a/newgrf.c +++ b/newgrf.c @@ -590,14 +590,14 @@ static bool AircraftVehicleChangeInfo(uint engine, int numinfo, int prop, byte * FOR_EACH_OBJECT { uint8 heli = grf_load_byte(&buf); avi[i].subtype &= ~0x01; // remove old property - avi[i].subtype &= (heli == 0) ? 0 : 1; + avi[i].subtype |= (heli == 0) ? 0 : 1; } } break; case 0x0A: { /* Large */ FOR_EACH_OBJECT { uint8 large = grf_load_byte(&buf); avi[i].subtype &= ~0x02; // remove old property - avi[i].subtype &= (large == 1) ? 2 : 0; + avi[i].subtype |= (large == 1) ? 2 : 0; } } break; case 0x0B: { /* Cost factor */