Default [Q] Open gap at front / faulty unit?

I have noticed a really annoying problem with my N5
On the bottom front side, there is this nasty gap between the screen glass and the housing (marked in red in the picture).



It has a diameter of about a third of a milimeter and is diligently collecting dust and dirt. To make things worse, it is nearly not possible to get the dirt out of it again, since it is to small for the fingernails. I always have to use the edge of a paper to clean it up

Does anybody else have this gap?
If not, I'll contact Google to get a replacement.