Industry Minister Christopher Pyne has condemned MPs speaking out against Malcolm Turnbull's authority after the Coalition's electoral collapse, saying anonymous quotes about the Prime Minister's leadership were cowardly.

Speaking on ABC radio a day after Mr Turnbull declared victory in the July 2 election, Mr Pyne was asked about an unnamed conservative MP who warned the close result would see some conservative backbench MPs attempt to to dictate policy to Liberal moderates.

"His theory was to win and win comfortably so the conservatives would all have to kneel at the altar of Malcolm Turnbull; well, I think someone else will be kneeling at the conservative altar now," the MP told News Corp.