Makamba said this as he appeared in court Friday seeking the cancellation of a warrant of arrest issued soon after he skipped the country. Ahead of that he was facing charges of externalisation of funds and trading in forex without a licence.
The controversial businessman returned to Zimbabwe in December following a coup which deposed Mugabe.
Makamba left the country after he was locked up for allegedly illegally dealing in foreign currency without a licence and externalisation. He was to spend more than 10 years in self-imposed exile.
On Friday, he told court that he came back because Mugabe was no longer the president.