Avast blocked their own update

Infection Blocked
URL: http://files.avast.com/files/emupdate/20131217.exe
Infection: Win32:Downloader-TJK [Trj]

A couple of topics related to this already (its hard to be first on the forums):

Response from avast.

Just received the 3rd vps update (131217-2) ???
Wouldn’t surprise me if this was to rectify this false detection.