The company has orders for 890 of those planes that it has yet to build.
Boeing is already on its way toward building 10 787s every month by the end of this year. On Wednesday Boeing said it plans to go up to 12 per month in 2016, and it's aiming to get to 14 per month by the end of this decade.
The 787 was first delivered in 2011. It's a long-range, fuel-efficient plane that has turned out to be very popular with airlines. It has sold 131 of the planes this year, even after battery problems grounded them for a while.