Can we tell Lightroom CC to simply overwrite files that have the same name in an export location?

I have albums in LR CC of course. But some of those albums I need to use the files in other applications or upload to the web.

I keep adding files to the albums, and then I export the albums to their own folder. 

When I do this, after the first time then LR CC creates new files with -2 or -3 or whatever at the end of the filename. And does NOT overwrite the existing files. In this case, I want them over written because I'm just effectively doing a sync to the folder.

LR CC can't do syncs to a hard drive folder.

I want to be able to tell LR CC to just over write the files with the same name.