The handshake between former premier Dr Mahathir Mohamad and PKR de facto chief Anwar Ibrahim may be the boost needed to strengthen Pakatan Harapan as a federal opposition pact, a Parti Amanah Negara leader said today.

Amanah communications director Khalid Samad said that their meeting yesterday could put to rest reservations among certain factions within PKR that have been against Mahathir and his new party, Parti Pribumi Bersatu Malaysia.

"There were reservations within PKR towards Bersatu. When there now is a reconciliation (between the two leaders), PKR as a whole can accept."