The make-up of Islamic banks' loan books is changing in Pakistan and Indonesia with the growing use of profit-sharing contracts that could help Islamic finance win more customers in the two largest Muslim-majority countries. Murabaha has been the workhorse of Islamic bank financing globally, but after years of dominance the structure is losing favour in some areas to profit-sharing contracts such as musharaka, istisna and salam, which are seen by many scholars as closer to the economic principles of Islam. In Indonesia, the change is more gradual as murabaha still represents over half of all financing by Islamic banks.