They may be rivals but the world's two principal aviation giants can play nice sometimes.
Boeing added that "Competition makes us all better!"
Airbus responded, using its own Twitter account, with a big thank you and agreement that competition was for the best.
The friendliness seems to have drawn a line under recent upset over Airbus' decision to take control of the Bombardier C Series plane. Boeing has unsuccessfully petitioned for that program to have import tariffs applied, arguing that it was being sold to customers cheaply after excessive state subsidy.