Cambodian Prime Minister Hun Sen said he would arrange a royal pardon for Prince Norodom Ranariddh, allowing him to end his self-imposed exile after being convicted of fraud.
Ranariddh had been sentenced in absentia to 18 months in jail after a court ruled he illegally sold his former political party's headquarters and used the proceeds from the sale to purchase another property in his own name.
Hun Sen said during a ceremony that King Norodom Sihamoni - Ranariddh's half-brother - would issue a royal pardon.
Hun Sen said he wanted Ranariddh at the opening of parliament next Wednesday.
The announcement came after Hun Sen's party was this month officially declared winner of the country's general election, extending his 23-year grip on power.