Not a problem.
Just that a melodic minor scale really consists of both of its directions. You don't just sing up the scale and never come down, and you don't go down the ascending scale (or the scale police will come after you I expect).
It's a matter of which direction each note in a particular scale tends to lead for its resolution. If you play them I think you will hear what I mean.
If anyone thinks this is too nit-picky you are in all probability correct. I'm just that way.
-Glenn