diff --git a/src/ground_vehicle.cpp b/src/ground_vehicle.cpp
index 9e01b42e6a..f82985306c 100644
--- a/src/ground_vehicle.cpp
+++ b/src/ground_vehicle.cpp
@@ -179,7 +179,7 @@ int GroundVehicle<T, Type>::GetAcceleration()
 		/* We'd like to cache this, but changing cached_power has too many unwanted side-effects */
 		uint32 power_temp;
 		this->CalculatePower(power_temp, max_te, true);
-		power = power_temp * 74611;
+		power = power_temp * 746ll;
 	}