Malaysia Airlines said it is deferring deliveries of 25 Boeing 737 Max jets.
It blames the ever delayed return to service timeline which will likely stretch beyond a full year.
The Max family of 737 jets have been grounded globally since March 2019.
"In view of the production stoppage and the delayed return to service of the 737 Max, Malaysia Airlines has suspended the delivery of its orders," the airline said.
Malaysia Airlines was expecting to take delivery of its first Max jet in July 2020.
It is another blow for Boeing which has just had one of its worst ever years.
It recorded a negative number of sales in 2019, its worst performance for more than 30 years.
That means there were more existing orders cancelled than new orders placed last year.
It was also the lowest number of plane delivery for 11 years.
