Colombian President Juan Manuel Santos will meet with his predecessor and chief opponent in a bid to save a peace deal with leftist rebels.

Santos' office says the president spoke with Alvaro Uribe by phone Tuesday and the two men will meet privately Wednesday.

Santos was defense minister under Uribe, and Uribe helped him be elected president, but the two angrily split shortly after Santos took office in 2010.

Santos has tried to extend an olive branch to his popular rival in the wake of Sunday's stunning referendum defeat of the peace accord with the Revolutionary Armed Forces of Colombia. Uribe led the "no" campaign, arguing that provisions that would keep rebels who committed serious war crimes from going to jail sets a bad example criminal gangs will seize on.