Duplicate movieclip naming problem. as2

So yeah, i’m making a game again. there’s a problem tho. I need the generated enemies to be called enemy1 enemy2 enemy3 and so on.

the code returns enemy0 every single time “maker” is executed. what am i doing wrong here? D:

Code:
laufen = "enemy"+i;

function maker() {
    duplicateMovieClip("enemy", "enemy"+i, _root.getNextHighestDepth());
    trace(laufen);
}
ID = setInterval(maker, 1000);

Yes enemy is on the stage and is being duplicated.