Nationals leader Michael McCormack says Scott Morrison could end up "one of the great modern day prime ministers", declaring the Coalition's relationship has never been stronger just 12 months after it teetered on the brink of collapse.

The Deputy Prime Minister said he and Mr Morrison were determined to "build a better Australia" following the Coalition's stunning May election win and would provide "stability and unity".

One year on from Scott Morrison's win over Malcolm Turnbull he says: "Frankly, anniversaries I find quite narcissistic so I tend to not engage in that sort of self-assessment." Credit:Alex Ellinghausen

Today marks a year since Mr Morrison was sworn in after emerging from the ashes of a bitter Liberal civil war that forced out Malcolm Turnbull.

Mr Morrison, who is in Hanoi en route to the G7 summit in Biarritz, France, said of the landmark on Friday: "Frankly, anniversaries I find quite narcissistic so I tend to not engage in that sort of self-assessment.