In quotes published by Sport24, Ronaldo said he knows the record will eventually be broken, but is hoping that it is not in Brazil.
The former World Cup Golden Boot winner and champion in 1994 and 2002 told his fans in Fortaleza, where Germany play Ghana in Group G, that they should cheer 'against' Klose in the match.
Ronaldo scored 15 goals across four tournaments from 1994-2006, although did not play any part in his side's 1994 World Cup triumph. In 1998 he scored four goals, he netted eight in 2002 as he led his country to victory almost single-handedly, before adding three more in Germany in 2006.
However, with 14 goals already to his name, Klose is widely expected to score the two goals he needs take away the title from the Brazilian, once known as 'El Fenomeno'.
A lot will depend on whether Germany boss Joachin Low decides to start with an out-and-out forward or choose to play a false-nine-formation with either Thomas Muller or Mario Gotze operating as the most advanced player.
It seemed two years ago that the Lazio forward's time in the German side had finished, as Mario Gomez became the German's main striker after scoring three goals in Euro 2012.
But due to Gomez's injuries and poor form, the 36-year-old has another chance to equal and break the Brazilian's record at his fourth World Cup.
Considering Germany are among the favourites to win the competition, Klose should have enough game-time to become the Word Cup's leading scorer, much to Ronaldo's apparent dismay.