1 files changed, 1 insertions, 1 deletions
diff --git a/src/engine.h b/src/engine.h
index d1b06e678..4b2fa8f4e 100644
--- a/src/engine.h
+++ b/src/engine.h
@@ -68,7 +68,7 @@ typedef struct AircraftVehicleInfo {
 	byte subtype;
 	SoundFxByte sfx;
 	byte acceleration;
-	byte max_speed;
+	uint16 max_speed;
 	byte mail_capacity;
 	uint16 passenger_capacity;
 } AircraftVehicleInfo;