Minister for Youth and Sports, Isaac Asiamah, has been with the team for some time now, as the country hopes to end its trophy drought.
Appiah said the Minister is playing the father role in camp, which should serve as a huge boost for the players.
“I was actually surprised when I heard the Minister was still here. It shows signs and support for the team. He has been here since our last game,” the Black Stars coach said.
“Once the players see him, they see him as a father and it will be a booster for the players”, Appiah said concerning the motivation for his players ahead of the game.
“The players also know what is at stake and we will give our best performance,” he concluded.
The Black Stars are aiming to end a 37-year trophy-less run, which stretches back to 1982.
Although the team has come close in recent years, Ghana has lost its last three finals in 1992, 2010 and 2015.
Ghana will face Tunisia in the round of 16 on Monday evening at the Ismailia stadium.
Appiah believes past records will not matter when the Black Stars face Tunisia in the round of 16 of the Africa Cup of Nations.
According to him, past wins over Tunisia in previous tournaments would not be a guarantee for another victory.
The 58-year-old, however, expressed confidence that his charges will be able to defeat their North African counterparts.
“It is true we have had good results over our opponents in our past meetings, but modern football has gone past previous glories,” Appiah said in his pre-match conference.
“I have always said and maintained that there are no minnows in this modern game of football, each country that has qualified to this stage deserve to be here and we have to treat each opponent with the maximum respect.
“Though we are poised to have good results against them again, the scenarios have always been different but I have so much trust and believe in my team heading into this game and I am sure they would give Ghanaians something to smile about,” he added.