While celebrating beating France 1-0 in yesterday's quarter final, Lahm knows a defeat to the hosts on Tuesday in Belo Horizonte would condemn him to a third straight appearance in the third place play-off.
"I really do not need that, that's something I want to rule out," joked Lahm, who was on losing teams in semi-finals at the 2006 and 2010 World Cup finals.
"We definitely want more, that wasn't our last appearance in Rio."
German coach Joachim Loew has reached the semis of all four major tournaments during his eight-year reign and the Germans are eager to return to Rio's Maracana Stadium for the final on July 13.
First they must beat Brazil, formidable even without star striker Neymar, who suffered a fractured vertebrae in their quarter final win over Colombia, and suspended captain Thiago Silva.
And Loew has urged his players "to take the next step" in their bid to end a 24-year wait for a fourth World Cup title by knocking-out Brazil.
"We'll see how things go now, only top teams reach the semi-finals, but we have now won 28 of our last 31 competitive matches," said Germany's head coach.
"It needs a special performance to permanently be in the last four, but now we are trying to take the next step.
"The team is established, stable and can handle a game, just as they did against Algeria.
"The team is improving from game to game, they are fully focused and are working very hard.
